Which of the following statements was based on facts rather than on the authors pure think

Which of the following statements was based on facts rather than on the authors pure thinking？

A．Miriam cried herself to sleep.

B．Miriam had buzzed about all night.

C．Miriam could only tell wasp larvae.

D．Miriam had left the cards on the floor.

请帮忙给出正确答案和分析，谢谢！