Comment on the output of following C program?#include main(){int a = 1;printf("size of a is %d, ", sizeof(++a));printf("value of a is %d", a);};

• A. size of a is 4, value of a is 1
• B. size of a is 4, value of a is 2
• C. size of a is 2, value of a is 2
• D. None of the above