Let a and b be valid boolean expressions. Which of the following best describes the result of the expression a || b?
A) It will evaluate to true if a evaluates to true and b evaluates to true. It will evaluate to false otherwise.
B) It will evaluate to false if a evaluates to false and b evaluates to false. It will evaluate to true otherwise.
C) It will evaluate to true if a evaluates to false and b evaluates to false. It will evaluate to true otherwise.
D) It will evaluate to true if a evaluates to false or b evaluates to false. It will evaluate to true otherwise.
E) None of the above statements correctly describes the evaluation of the expression.

Question

Quizplus · Accepted Answer

The || operator represents the logical or. Therefore the expression will evaluate to true whenever a is true or b is true, or they are both true. Thus, it will evaluate to false only when both a is false and b is false, and it will evaluate to true otherwise.

Let a and B Be Valid Boolean Expressions