Which of the following is not a valid variable name declaration? Options: A . &nbspfloat PI = 3.14; B . &nbspdouble PI = 3.14; C . &nbspint PI = 3.14; D . &nbsp#define PI 3.14

Which of the following is not a valid variable name declaration?

Question

Which of the following is not a valid variable name declaration?

Options:

A . float PI = 3.14;

B . double PI = 3.14;

C . int PI = 3.14;

D . #define PI 3.14

Answer: Option D

#define PI 3.14 is a macro preprocessor, it is a textual substitution.

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