Named memory location that may hold different values over time.

• A. Constants
• B. Variables
• C. Attributes
• D. Methods

Answer: (B)

A variable is a named memory location that may hold different values over time. You can assign a value to it and later change that value as the program runs, so the stored data can vary. This mutability is what makes it the right fit for a location that holds changing information, like a counter or user input. Constants are fixed values that don’t change once set. Attributes are properties tied to an object in object-oriented contexts, and methods are functions that belong to objects. So the described concept aligns with a variable. For example, a variable like score might start as 0 and later be updated to 5 or 10.