C Programming Language MCQ › Variable in C Language › Question #1134
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QWhich of the following is not a valid variable name declaration?

ID: #1134 Variable in C Language 7,270 views
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  • A #define PI 3.14 ✔ ✖
  • B float PI = 3.14; ✔ ✖
  • C double PI = 3.14; ✔ ✖
  • D int PI = 3.14; ✔ ✖
Correct Answer: Option A

Explanation

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

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