In Order to Avoid Becoming Flustered in a Situation When

In order to avoid becoming flustered in a situation when asserting your rights, you should overlearn, a process that involves

A) practicing assertive gestures and voice modulation in front of a mirror.
B) disclosing your true feelings and desires to a friend.
C) continuing to practice the assertion skills even after you have initially mastered them.
D) playing out a confrontational scene in which you stand up for yourself.