Side-by-Side figures with subfigures in a single-column text format

Question

I want to place 2 figures side-by-side in a single column document written using elsarticle where each figure has some sub-figures associated with it.

Here is my mwe
documentclass[review]{elsarticle}
usepackage{subfig}
begin{document}
    begin{figure}[]  % Figure 1
        centering
        subfloat[A]{includegraphics[width=0.4linewidth,height=0.15 textheight]{example-image-a}} 
        subfloat[B]{includegraphics[width=0.4linewidth,height=0.15 textheight]{example-image-b}} 
        caption[]{Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque }
    end{figure}
    
    begin{figure}[]  % Figure 2
        centering
        subfloat[C]{includegraphics[width=0.4linewidth,height=0.15 textheight]{example-image-c}} 
        subfloat[X]{includegraphics[width=0.4linewidth,height=0.15 textheight]{example-image}} 
        caption[]{Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque }
    end{figure}
end{document}

can someone help me place them the way they look in the attached image?

Zarko · Accepted Answer

You need to put both images in one figure float, each in minipage or intabularx:
With minipage:
documentclass[review]{elsarticle}
usepackage{subfig}
begin{document}
    begin{figure}[ht]  
        setkeys{Gin}{width=0.4linewidth,height=0.15textheight}
    % Figure 1
    begin{minipage}[t]{0.45linewidth}
        centering
        subfloat[A]{includegraphics{example-image-a}} 
        subfloat[B]{includegraphics{example-image-b}} 
        caption[]{Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque }
    end{minipage}
    quad
    begin{minipage}[t]{0.45linewidth}
        centering
        subfloat[C]{includegraphics{example-image-c}} 
        subfloat[X]{includegraphics{example-image}} 
        caption[]{Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque }
    end{minipage}
    end{figure}
end{document}

With tabularx:
documentclass[review]{elsarticle}
usepackage{subfig}
usepackage{tabularx}
newcolumntype{C}{>{centeringarraybackslash}X}

begin{document}
    begin{figure}[ht]  
        setkeys{Gin}{width=0.4linewidth,height=0.15textheight}
    % Figure 1
    begin{tabularx}{linewidth}{CC}
        subfloat[A]{includegraphics{example-image-a}}
        
        subfloat[B]{includegraphics{example-image-b}} 
        caption[]{Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque }
    &
        subfloat[C]{includegraphics{example-image-c}} 
        
        subfloat[X]{includegraphics{example-image}} 
        caption[]{Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque }
    end{tabularx}
    end{figure}
end{document}

Result is similar as before.

Side-by-Side figures with subfigures in a single-column text format

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