36. ifp and q are distinct... ., then: 1ifp = 1 (mod 4) or g = 1(mod 4) -1 if p =q = 3(mod 4) (a) even, prime (b) odd, prime (c) odd, composite (d) none of thes

36. Ifp and q are distinct... ., then: 1ifp = 1 (mod 4) or g = 1(mod 4) -1 if p =q = 3(mod 4) (A) even, prime (B) odd, prime (C) odd, composite (D) None of these 37. x E a (mod 2"), n 2 3 has a solution if and only if : (A) a = O(mod 8) (B) a = 1 (mod 8) (C) a = 2(mod 6) (D) None of these 38. x = a (mod 4) has a solution if and only if (A) a = O(mod 4) (B) a = l (mod 3) (C) a = 1 (mod 4) (D) None of these There