Answer: Virus.
- A Bacterium
- B Protozoan
- C Virus
- D Fungus
Correct answer: C. Virus
Explanation: Hepatitis B is caused by the Hepatitis B Virus (HBV). It can be transmitted sexually, through blood, and from mother to child during birth.
Contraceptive methods span a spectrum from temporary/natural to permanent/surgical; condoms stand out as the only method offering STI protection alongside contraception.
Concept context
Understand reproductive health, family planning, contraception methods, STIs, population control, and assisted reproductive technologies.