Question $4$ of $20$ :

Select the best answer for the question.

Which one of the following Boolean equations states that $Q$ is true when one$-$and only one$-$input is true?

A$.Q=ABC$

B$.A=A+B+C$

C$.Q=Ao+Bo+C$

D$.Q=A*B*C$

Mark for review $($Will be highlighted on the review page$)$