Final answer:
Sterilization involves vasectomy in males and tubal ligation in females. Emergency contraception is the pill used after sexual activity. Abstinence is a contraceptive method that involves refraining from sexual activity.
Step-by-step explanation:
The first statement describes a method called sterilization, which involves a vasectomy in males (surgically blocking the tubes that carry sperm) and a tubal ligation in females (surgically blocking or sealing the fallopian tubes). This permanently prevents pregnancy by making it impossible for sperm to reach the egg.
The second statement describes a method known as emergency contraception or the morning-after pill. It is used after sexual activity to reduce the risk of pregnancy. The pill contains hormones that prevent or delay ovulation, fertilization, or implantation of a fertilized egg.
The method that matches the third statement is abstinence. Abstinence involves refraining from sexual activity altogether, thus eliminating the risk of pregnancy and sexually transmitted infections (STIs).
Learn more about Contraception