Correct Option
The correct matches between diseases and their causative organisms are as follows:
- A. Malaria is caused by Plasmodium species, which are protozoan parasites. It is transmitted by the female Anopheles mosquito. Thus, Malaria (A) matches Protozoan (4).
- B. Poliomyelitis is caused by the poliovirus. This virus affects the nervous system and can lead to paralysis. Thus, Poliomyelitis (B) matches Virus (3).
- C. Tuberculosis is caused by Mycobacterium tuberculosis, a bacterial pathogen. It primarily affects the lungs. Thus, Tuberculosis (C) matches Bacteria (2).
- D. Ringworm is a common fungal infection of the skin. It is caused by dermatophytes such as Trichophyton or Microsporum species. Thus, Ringworm (D) matches Fungi (1).
Based on these matches, the correct sequence is A-4, B-3, C-2, D-1, which corresponds to option (A) 4321.
Incorrect Options
- Option 2 (4312) is incorrect because Tuberculosis (C) is caused by bacteria (2), not fungi (1).
- Option 3 (3412) is incorrect because Malaria (A) is caused by a protozoan (4), not a virus (3).
- Option 4 (3421) is incorrect because Malaria (A) is caused by a protozoan (4), not a virus (3).