Don't waste your words any more; she is as _____ as a mule (骡子) and no one can persuade her. [ ]

A. reliable

B. stubborn

C. determined

D. tired

以下程序中给指针p分配三个double型动态内存单元，请填空。　　# include ＜stdlib.h＞　　main (　)　　{　double *p;　　　p=(double *) malloc(【 】);　　　p[0]=1.5;p[1]=2.5;p[2]=3.5;　　　printf(“%f%f%f\n”,p[0],p[1],p[2]); }