The $!$ is used as the Boolean OR operator.

The logical OR appears between two values or expressions. If either expression is true, the entire statement is evaluated as true. For example, in the expression A$!$B if either variable is true $($or if both variables are true$),$ the expression is evaluated as true.

Question: Assume that the variable A is true, the variable B is true, and the variable C is false. Which of the following is false?

A$.$ A$!$C

B$.$ A&C$!$B

C$.$ C$!$C$!$B

D$.$ All of the above

E$.$ None of the above