关于语句#include＜iostream＞using namespace std;void main(){cout＜＜100.8989663＜＜'';com＜＜fixed＜＜100.8989663＜＜'';cout＜＜scientific＜＜100.8989663＜＜'';}的输出结果为( )

A．100.899 100.898966 1.008990e+002

B．100.8989663 100.898966 1.008990e+002

C．100.899 100.898966 1.008989e+002

D．100.899 100.8989663 1.008989e+002