Correct option is B
Let's break down the information:
· B, F, and E are not old men.
· A, F, and C are not teenage girls.
· G is an old man.
· D is an infant.
From this:
· A, C, and G must be old men because B, F, and E are not old men, and G is explicitly mentioned as an old man.
· D is an infant, leaving B and E as the two teenage girls.
Thus, the correct answer is (b) B and E.