Which of the following is INCORRECT？A．The Internet can be connected by light waves.B．You c

Which of the following is INCORRECT？

A．The Internet can be connected by light waves.

B．You can pay many different kinds of bill online.

C．Most of universities offer classes on the Internet.

D．You can even buy groceries online at online stores.

请帮忙给出正确答案和分析，谢谢！