Which of the following sentences does NOT express a presumption？A．Why isn"t he here？ He mu

Which of the following sentences does NOT express a presumption？

A．Why isn"t he here？ He must have missed the train.

B．Bad seeds must bring bad crops.

C．He can"t have been to your home. He doesn"t know your address.

D．You must be Mr Jones.

请帮忙给出正确答案和分析，谢谢！