The Employment Standards Act in a specific province indicates that employees must get at least $30$ minutes of rest during a six$-$hour shift. What is not allowed in the independent employment contract?

A$.$ giving a $40-$minute break for a $6-$hour shift

B$.$ giving a $30-$minute break for a $5-$hour shift.

C$.$ giving two $15-$minute breaks during a $6-$hour shift

D$.$ agreeing to remove the breaks from a $7-$hour shift as long as the employee signs off on it