The Correct answer is B.

Explanation

You do not know the value of the??term or the??term of the sequence, but you do know the values of the?,?<, and??terms. The correct formula must give?as the value of the??term,??as the value of the??term, and??as the value of the??term. Choice E,?, gives?, not?, as the value of the??term. Choice A,?, gives?, not?, as the value of the??term. Choice C,?, gives?, not?, as the value of the??term. Choice D,?, gives?, not?, as the value of the??term. This leaves choice B,?, which gives the correct values for the?,?, and??terms of the sequence.