Which term best describes a symbolic name used for a value in programming?

• A. Subroutine
• B. Pseudo code
• C. Interface
• D. Variable

Answer: (D)

A symbolic name used for a value in programming is a variable. A variable acts as a label that refers to a storage location in memory where a value is kept, and that value can change as the program runs. You declare a variable with a name (and often a type), assign it a value, and then read or update that value using the name. For example, x = 5 creates a variable x whose value is 5; later, x = x + 3 updates it to 8. This concept is different from a subroutine (a block of code that performs a task), pseudo code (an informal description, not executable), and an interface (a contract for how components interact).