Here is my explanation
So we get the line reference(39-40). what is the point of this paragraph? well it is the author saying why the new explanation appeals strongly to people. Remember that the author doesn't accept this new explanation.
For this type of question you usually want to look right before the quoted lines in order to see WHY the author mentions that specific fact.
We can see in lines 36-38 why the author mentiosn that we look into mirrors. This was an example meant to illustrate that mirrors are designed to make 2d images appear to have depth.. so 3d.
A no, no contrasting here. Doesn't match my prephase, going to eliminate
B Opposite. the author says there is no relationship between these two ( lines 32-34) so not sure why lines 39-40 would illustrate something the author explicitly said does not exist.
D this was tempting for me since it is also stated before the example(39-40). However, it might be a little extreme/broad. we TYPICALLY deal with mental constructs rather than perceptions??!? author just says mirrors are the exceptions in line 32-34, so mirrors is where the above relationship will occur. The author says everything else... I assume, will have the relationship of perception and mental constructs.
So C is the better match
E no , I don't recall anything about psychological activity, I am going to eliminate this because it isn't mentioned in that paragraph, let alone the entire passage.