Question

Assuming a is a bool with a value of false, which of the following evaluates to true?

A) !(!a)
B) a
C) !a
D) None of the above

Answer 1

The correct statement that evaluates to true, assuming 'a' is a Boolean with the value of false, is C) !a. The negation of false is true, making it the correct option.

Step-by-step explanation:

Assuming a is a bool with a value of false, let's evaluate which of the following evaluates to true:

• A) !(!a): The inner negation !a turns false (a) into true, and the outer negation turns it back to false. Therefore, A evaluates to false.
• B) a: Since a is given as false, B evaluates to false.
• C) !a: The negation of a which is false is true. Therefore, C evaluates to true.
• D) None of the above: This is not the correct answer since C evaluates to true.

The correct answer is C) !a, since the negation of false is true.