After executing this code:

int dc = 20;
double df = (9/5)*dc+32;

the value of df will be :

A. 68.0
B. 52.0
C. 32.0
D. 0
E. None of the above
1) 68.0
2) 52.0
3) 32.0
4) 0
5) None of the above