The scope of a variable declared outside of any function is:

a) Global

b) Local

c) Within that file only

a) Global

Explanation:

The scope of a variable declared outside of any function is Global.

Let us consider an example:

int g;

int add (int a, int b) {

return a+b;

}

int subtract (int a, int b) {

return a-b;

}

Here the variable g is defined outside any function and is accessible anywhere within the program. This is a global variable.

Variables defined within each function - a, b on the other hand have a local scope are are visible only within their respective function bodies.