What is the error in this code?

C++ void MyFct(int& x) {

x = (x * x) + 1;

}

int main() {

cout << MyFct(9); }

Choices:

A- MyFct() cannot both read and assign x B- MyFct() cannot be called with a literal C- No error exists; the program will output 82 D- MyFct() is missing a return statement