Statements I: Only a few gaps are claps, i.e., some gaps will definitely not be claps. All flaps are claps.

All claps being flaps is a possibility is true. Some flaps are gaps is not definitely true. So, the conclusions cannot be derived from statement I.
Statements II: Only a few gaps are flaps, i.e., some gaps will definitely not be flaps. Only a few claps are gaps, i.e., some claps will definitely not be gaps.

All claps being flaps is a possibility is true. Some flaps are gaps is true. So, the conclusions can be derived from statement II.
Statements III: Some claps are not gaps. Only a few claps are flaps, i.e., some claps will definitely not be flaps.

All claps being flaps is a possibility is not true. Some flaps are gaps is not a definite truth. So, the conclusions cannot be derived from statement III.
Statements IV: No gap is a clap. Only a few flaps are gaps, i.e., some flaps will definitely not be gaps.

All claps being flaps is a possibility is true. Some flaps are gaps is true. So, the conclusions can be derived from statement IV.
Statements V: Only a few flaps are gaps, i.e., some flaps will definitely not be gaps. A few gaps are claps.

All claps being flaps is a possibility is true. Some flaps are gaps is true. So, the conclusions can be derived from statement V.
So, the conclusions follows from statements II, IV and V.