Concept:The best way for a teenager to prevent pregnancy is to practise abstinence, because it is the only method with no failure rate.
Explanation:Abstinence means making a personal decision to avoid sexual intercourse completely.
When there is no sexual contact, a sperm cell can never reach an egg cell.
As a result, fertilisation cannot happen, and pregnancy is impossible.
The birth control pill requires daily use and can lose effectiveness if a dose is forgotten.
Safe sex using condoms lowers the chance of pregnancy but does not remove it completely, since condoms can tear or be used wrongly.
Having only one sexual partner reduces the spread of sexually transmitted infections, but it gives no physical protection against pregnancy.
Among all the options, abstinence is the only one that is
100% reliable.
For this reason, health educators recommend it as the best method for preventing teenage pregnancy.
Answer:B. avoid having sex.