Q. What will be the output of the following code snippet?

#include <stdio.h>
void solve(int x) {
    if(x == 0) {
        printf("%d ", x);
        return;
    }
    printf("%d ", x);
    solve(x - 1);
    printf("%d ", x);
}
int main() {
    solve(3);
	return 0;
}

• (A) 3 2 1 0 1 2 3
• (B) 3 2 1 0
• (C) 0 1 2 3
• (D) None of the above