For the reaction, A+B → C, rate law is represented as rate = k[A]. If the concentration of both ‘A' and ‘B’ are doubled then rate of reaction

I) Let [A] = [B] = 1Mthen r1 = k(1)         r1 = kII) When [A] = 2 M  r2 = K(2)                                     r2 = 2K[B] has no effect on rate of reaction. When [A] is doubled, rate doubles