Well, you actually typed the question and answer choices wrong.
Real question is this:
Now and then, one member of the audience or another would bend forward _________ intently following an argument that is both complicated and fascinating.
F. as if you were
G. when it was
H. in the posture that is
J. in the position of someone
This is from test 0861D, question 72 in the English section
Answer is J because…
F. Wrong. Includes “you,” which does not match with “one member.” You need another instance of “you” if you want to use “you” again.
G. Wrong. “It” doesn’t seem to refer to anything here. What is “it”? It’s ambiguous, so this choice is wrong.
H. Wrong. This choice sounds like the posture is the thing that is intently following an argument. That makes no logical sense. Only PEOPLE can intently follow an argument. A posture is a position you take, whether literally or figuratively.
J. Correct because it says “of SOMEONE” intently following…
A person can logically follow an argument, so this choice is great.