以下程序的功能是：求出数组x中各相邻两个元素的和，依次存放到a数组中，然后输出．请填空。
main()
int x[10]，a[9]，I；
for(i=0；i＜10；i++)
scanf("%d"，＆x([i])；
for(i=1；i＜10；i++)
a[i-1]=x[i]+______；
for(i=0；i＜9；i++)
printf("%d"，a[i])；
printf("\n")；

____ Johnny says sounds right to Helen. That’s why she has made up her mind to live with him ____ happens.

A．Whatever; whatever

B．Whatever; however

C．No matter what; whatever

D．No matter what; no matter what