Methods Used for Emergency Contraception Include Plan B One-Step and Ella

Methods used for emergency contraception include Plan B One-Step and ella. A major difference between these methods is that Plan B One-Step

A) is a pill while ella is an injection.
B) is an injection while ella is a pill.
C) has a much higher success rate than ella does.
D) requires a prescription while ella does not.
E) does not require a prescription while ella does.