QUESTION 16 Consider the following two relations: R(A,B,C), S(C,D) R: A B C a1 b1 c1 a2 b1 c2 a3 b2 c1 a4 b2 c2 C D c1 d1 c2 d2 c3 d3 How many rows are in the result of the following query? select from R outer join S on RC-S.C 4 C-6 D.7