Are calls A and B semantically identical? Which is preferable?

Question

I have a simple question.

#include void inc_mutable(int& x) {++x;
} void inc_pointer (int* x) {++(*x);
} int main() {int x = 10;inc_mutable(x);<- Ainc_pointer(&x);<- Bstd::cout << x;
}

1) Are calls A and B semantically identical?

2) Which is preferable?