Smoking hasn't been allowed in public places since May lst last year. It may be a good chance for people to

smoking.

A．put up

B．give up

C．pick up

D．look up

已有定义如下：
struct node
int data;
structnode *next,
*p;
以下语句调用malloc函数，使指针p指向一个具有struct node类型的动态存储空间。请填空。
p=(______) malloc(sizeof(struct node));