_________ you are, __________ mistakes you’ll make.

A．The less careful; the less

B．The less careful; more

C．The more careful; the fewer

D．The more careful; the more

依据垄断者占有市场的情况，可将垄断分为下列哪些类别（）

A.独占垄断

B.自然垄断

C.寡头垄断

D.联合垄断