Which of the following are unary operators in C? 1. ! 2. sizeof 3. ~ 4. &&

1, 2
1, 3
2, 4
1, 2, 3

Correct Answer: 1, 2, 3

Explanation:

An operation with only one operand is called unary operation.
Unary operators:
! Logical NOT operator.
~ bitwise NOT operator.
sizeof Size-of operator.

&& Logical AND is a logical operator.

Therefore, 1, 2, 3 are unary operators.

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