Which of the following options is true when you run the given code snippet?
int num1 = 0;
int num20;
string str1;
istringstream strm("16 Feb 1982"); strm >> num1 >> str1 >> num2;

A. str1 is "1982"
B. num2 is 0
C. num2 is 16
D. num1 is 16