Pipe Invert Elevation

Actually none of your options are correct in my opinion, and that is NOT just because I am Canadian and you are NOT using the metric system. When you want to give the invert of a pipe, or box culvert, you are measuring to the inside of the pipe and the lowest point on said pipe. The reason your possible answers are not correct, is that you are going in the wrong direction. You start at elevation 192 and you are going down, not up. So it would be:

192'-2'-10'-1'=179'

TIP: Your storm sewer pipe invert elevation should almost always never be above your road elevation.

There is no need to worry about the wall thickness of the pipe when calculating the invert unless its part of your chain of dimensions you are using. In your sketch this is not a factor.