Ms Townsend's Third-Grade Class Is Heading to the Door for Recess

Ms. Townsend's third-grade class is heading to the door for recess. Which of the following statements about forming a line will most likely promote a positive relationship between her and her students?

A) "You better make a line if you want to go outside."
B) "If you don't line up properly, you'll have to go back to your seats."
C) "Remember our rule about lining up at the door."
D) "I'm so tired of your inability to form a line."