I'm guessing the word that is italicized capacious because in this case it is synonymous with vast, meaning that he has a developed mind with broad views.
"A.Clear Skies" is the correct answer. This phrase is often used to imply that there should be no issue going forward with a certain task or event. It comes from the lingo of pilots and sailors.
The answer is A. Since "meager" means something that lacks quantity/quality, this is similar to "barely thought out, with few details."
