It is a python problem. C is correct. Could anyone explain the reason for a and b?

Why is it good practice to use constants in your code? a) They make it easier to modify the code when values change b) They allow the same value to be used multiple times without being redeclared as a literal value c) They improve the readability of the code by providing a descriptive name for a value rather than just the value. d) All of the above. e) None of the above