问题详情

One day, Gina is told that she cannot visit her Grandma Lilly because______.

A．Grandma is busy preparing for cooking more cookies

B．Gina cannot make Grandma feel better

C．Gina needs more sleep and rest

D．Grandma is not very well and is in hospital

请帮忙给出正确答案和分析，谢谢！