The answer to this question is (A) "G is in group 2." Answer choice (D) "Q is in group 2" is incorrect.
We are told that F and S are in group 3. 1: __ __ __ 2: __ __ __ 3: F S __
Rule #2 tells us that F and J must be in the same group, so we should also place J in group 3. This fills the group. 1: __ __ __ 2: __ __ __ 3: F S J
Rule #5 tells us that neither H nor T can be in group 2. Since we only have groups 1 and 2 open, this means that they must both be in group 1. 1: T H __ 2: __ __ __ 3: S F J
Rule #3 says that G and T cannot be in the same group. Since T is in group 1, we place G in group 2. Rule #4 says that H and R cannot be in the same group. Since H is in group 1, we place R in group 2. 1: T H __ 2: R G __ 3: S F J
Each group has one adult. We do not know where to place Q and K, as either could be in group 1 or group 2. Our final diagram is as follows: 1: T H (Q/K) 2: R G (K/Q) 3: S F J
The only answer choice that is consistent with our diagram is (A), so it is correct.
Does that make sense? Hope it helps! Please let us know if you have any other questions!