Would It Be Wrong for You to Say "I Can

Would it be wrong for you to say "I can only generalize my findings to my study sample?"

A) Yes, because when you generalize, you go beyond, so you must identify a group larger than the sample when you generalize.
B) Yes, because generalizing means keeping it simple, so you cannot go beyond the sample when you generalize.
C) No, because the sample is the closest body of people to your data.
D) No, because it makes sense that you can generalize to your sample because this is where you got your data.