Interested!

#help I was super confused by this question because I was unclear as to whether a nucleomorph was always, or just in this case, a product of endosymbiosis.

I originally chose A, thinking that C assumed that ants had to forage during the afternoon... then I realized that C was zeroing in on ants who specifically forage in the afternoon IN the Sahara Desert... tricky.

It seems to me that none of the listed answer choices accurately paraphrase the main conclusion. JY explains that answer choice E is a combination of the context and conclusion, but the wording in the "correct" answer choice is the direct phrasing pulled from the context. As such, I don't see how that could possibly be considered the main argument. Help is welcome! Thanks :) #help