Which of the following sentences can NOT delete the word "should"？A．I request that company

Which of the following sentences can NOT delete the word "should"？

A．I request that company should pay more to those who work hard.

B．He insists that money should be saved in banks.

C．I should have told you earlier so that you can make full preparation.

D．She demands that her husband should take care of their baby today.

请帮忙给出正确答案和分析，谢谢！