I was doing this question based on output.The code is depicted below. ~~~~~

include<stdio.h>

struct s { unsigned a:5; unsigned b:5; unsigned c:5; unsigned d:5; }v={1, 2};

main() { printf("size of v = %d",sizeof(v)); return 0; } ~~~~~

The output of above code is "size of v = 4". I will be glad if someone could help how we are getting this 4 as output?Thanks in advance!