Which term is a memory location that can be changed during program execution?

• A. Constant
• B. Literal
• C. Function
• D. Variable

Answer: (D)

Variables are named memory locations whose contents can change during program execution. This ability to hold a value and then be reassigned as the program runs is what lets programs store and update state—for example, starting with a value of 5 and later setting it to 7 or 5 + 3. Constants are values that don’t change after initialization, literals are fixed values written directly in code, and functions are blocks of code, not mutable storage for data. Hence, the term that fits a memory location that can be changed is variable.