Are we supposed to assume that these chemicals are initially "harmless" or that the dilution process caused them to become harmless? There is nothing in the passage discussing whether or not the chemicals are harmless.

No other answer choice makes sense, but Answer choice A requires some form of assumption to be made.

some insight please.

I have an issue with B. The stimulus stated that an equal number of painters, sculptures and photographers entered, how then, can we conclude that the increased price had any impact on which art gets exhibited? since the overall submissions were equal for all three types of artists we cannot say that more painters and sculptors might have submitted works if their fee was lower.

Are we to assume that only rich but bad artists submitted photos and sculptors whilst, good photographers poor or rich can afford the $25 fee? nevertheless, and equal number submitted and they all met the traditional criteria and were all exhibited as result of.

this question confuses me.