What is the term for the area where a variable is defined and can be accessed?

The correct term for the area where a variable is defined and can be accessed is "Scope." In programming, scope refers to the visibility of variables and functions in different parts of the code. When a variable is declared, its scope determines where in the program that variable can be accessed or modified.

For instance, a variable defined inside a function has a local scope, meaning it can only be accessed within that function. In contrast, variables defined at the module level usually have a global scope, allowing them to be accessible from any function within that module. Understanding scope is crucial for managing variable visibility and avoiding conflicts, such as naming collisions.

The other terms listed do not pertain to the concept of variable accessibility in programming. "Range" is often used in mathematics and programming to describe the span of values, "Limit" refers to constraints or bounds, and "Domain" can indicate the set of possible input values for functions but does not specifically relate to variable accessibility. Thus, scope is the precise term that captures the essence of where variables can be accessed in code.