Question

Q.1. Identify valid variable declaration.... a) _6 = 35. b) . = 9483. C) int = 158. d) None​

Answer 1

Answer:

In C language, a variable name can consists of letters, digits and underscore i.e. _ . But a variable name has to start with either letter or underscore. It can't start with a digit. So valid variables are var_9 and _ from the above question.

Answer 2

Answer:

a) and c)

Refer to the attachment.

Only option b gives an error.