Which term describes names used everywhere in a program?

• A. Local variables
• B. Global variables
• C. Library routines
• D. Arrays

Answer: (B)

Identifiers with global scope are accessible from anywhere in the program. The phrase “names used everywhere” points to these global identifiers, because declaring a variable outside any function makes it visible to all parts of the code, not just within a single function. Local variables, by contrast, are confined to the function or block where they’re declared, so they can’t be used globally. Library routines are predefined functions, not names that are universally visible across the program, and arrays are just a type of variable that holds multiple values under one name. So the best fit for the idea of names that can be used throughout the entire program is the global variables concept.