Question

The causative agent of malaria is:

• A. Plasmodium falciparum
• B. Anopheles mosquito.
• C. Trypanosoma brucei
• D. Entamoeba histolytica

Hint:

Malaria is caused by Plasmodium species, with the female Anopheles mosquito serving as its vector.

Answer 1

The Correct Option is A

Step 1: Understanding malaria. 
Malaria is a disease caused by protozoan parasites of the genus \textit{Plasmodium}. Among the species, Plasmodium falciparum is the most severe and deadly. 

Step 2: Role of Anopheles mosquito. 
The female Anopheles mosquito acts as the vector for the transmission of \textit{Plasmodium} species but is not the causative agent itself. 

Step 3: Explanation of other options. 
Option (B): Incorrect. The Anopheles mosquito is a vector, not the causative agent. 

Option (C): Incorrect. Trypanosoma brucei causes sleeping sickness. 

Option (D): Incorrect. Entamoeba histolytica} causes amoebiasis. 

The correct answer is: Plasmodium falciparum