What is the error message when you attempt to multiple a number by text?

What does this program do?

``` // Ex. 8.14: ex08_14.cpp // What does this program do? #include using namespace std; int mystery2(const char*); // prototype int main() { char string1[80]; cout << "Enter a string: "; cin >> string1; cout << mystery2(string1) << endl; } // What does this function do? int mystery2(const char* s) { unsigned int x; for (x = 0; *s != '\0'; ++s) { ++x; } return x; } ```

You can restore a deleted layer during the current editing session by deleting the ____ state on the History panel.

A. New B. Rasterize C. Delete Layer D. Return