Which of the foliowing statement(s) is/are true? (A) If `a^x =b^y=c^z and a,b,c` are in GP, then x, y, z are in HP (B) If `a^(1/x)=b^(1/y)=c^(1/z)` and `a,b,c` are in GP, then `x,y,z` are in AP