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Which of the following is true of a constant? Choose all that apply.

A. It cannot be changed by the program as it runs.
B. It is a data type.
C. It is a procedure in a block of code.
D. It can be changed by the program as it runs.

1 Answer

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Final answer:

A constant is a value that cannot be altered by the program during its execution, meaning it remains the same throughout the program. It is not a data type, nor is it a procedure within a block of code.

Step-by-step explanation:

Which of the following is true of a constant? A constant is a value that cannot be altered by the program during its execution, which means the correct answers are:

  • A. It cannot be changed by the program as it runs.
  • B. It is a data type (This is incorrect; a constant is a value, not a data type).
  • C. It is a procedure in a block of code (This is also incorrect; a constant is not a procedure).
  • D. It can be changed by the program as it runs (This is incorrect; once defined, a constant cannot change).

An example to illustrate this concept is the speed of light, which is a constant value used in scientific equations and does not change.

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