If it is given that f and g are entire functions which one of the following is not an entire function OA. f(g(z)) OB. f (2) g (z) OC. f(z) g (z) 5 (3) OD. The values of a and for which f(z) = (ax+ y) +i (7x9y) is analytic for all z are Aa=9 and = -7 OB. a=-7 and = -9 Oca=-9 and B=7 OD.a=7 and B=-9