expat is short form for expatriate become plural with the addition of s or es. therefore, plural of expat is expats in short form and the plural of the standard form expatriate is expatriates.

if you don't say directly that this is true then you really is "Verisimilitude" ... you are trying to articulate how a false answer could be closer to the truth than another false answer... then you are talking about philosophy.

so if the answer is correct then it is really not the answer that made it correct but its the correctness of the answer that made the incorrect correct.