21. let p and q be distinct primes and let g and h be two groups such that o(g)=p and o(h) = q. the number of distinct homomorphims from gto h is/are (a) 1 (b)

21. Let p and q be distinct primes and let G and H be two groups such that o(G)=p and o(H) = q. The number of distinct homomorphims from Gto H is/are (A) 1 (B) p-1 (C) (D) p