A Levels Biology (9700)•9700/13/O/N/23

Explanation
Challenges in Erasing Tuberculosis Steps:
- Identify common barriers to TB elimination: latent infections, drug resistance, and socioeconomic factors.
- Evaluate statement 1: Likely incorrect if it misattributes difficulty to easily controllable aspects like vaccination availability.
- Evaluate statement 2: Correct if it highlights drug-resistant strains complicating treatment.
- Evaluate statement 3: Correct if it addresses latent TB persisting asymptomatically in populations. Not enough information on exact statements 1, 2, and 3 to fully analyze. Why D is correct:
- Selects only accurate statements (2 and 3) per standard TB epidemiology, excluding flawed ones. Why the others are wrong:
- A includes incorrect statement 1.
- B pairs correct 2 with incorrect 1.
- C pairs correct 3 with incorrect 1.
Final answer: D
Topic: Infectious diseases
Practice more A Levels Biology (9700) questions on mMCQ.me