it's A.
from stmt 1: the possibilities are 22, 24, 26, 28, 33, 36,39,.... which are all composite. Sufficient.
from stmt 2: the possibilities are 22 (composite), 23 (prime), Insufficient.
it's A.
from stmt 1, pt C lies on the perpendicular bisector of AB, hence it's the same distance from A and B.
stmt 2: C can lie anywhere on A, B - midpoint is a possibility.