Which of the following is not a valid C variable name? Options: A . &nbspint number; B . &nbspfloat rate; C . &nbspint variable_count; D . &nbspint $main;

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

Question

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

Options:

A . int number;

B . float rate;

C . int variable_count;

D . int $main;

Answer: Option D

Since only underscore and no other special character is allowed in a variable name, it results in an error.

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