Consider statements A to D below, some of which are true and others are false. Of the following lists, which one includes only TRUE statements?

$($A$)$ Every regular language is context$-$free.

$($B$)$ Every context$-$free language is regular.

$($C$)$ There is a context$-$free language that is regular.

$($D$)$ There is a context$-$free language that is not regular.

Question $2$Answer