she .better not arrive late.A,did B,has C.'d D.would

问题描述:

she .better not arrive late.A,did B,has C.'d D.would
请帮我选正确答案以及原因

C
"Had better"固定搭配,作为提出建议的一种表达方式.这句话是说“她最好别迟到”.