26. 下列C 語言程式片段執行結果為何?void fun2(int a , int *b){if(a<=1) return;else {*b *= 2;fun2(a-1,*b);}}int main(void){int a=5,b=6;fun2(a, &b);printf(“%dn”,b);}
(A)6
(B)12
(C)24
(D)48