Assertion (A): Gambusia is a fish which is being introduced into the ponds to check vector-borne disease.
Reason (R): AIDS is a vector-borne disease.

Options

A. Both A and R are true and R is the correct explanation for A.
B. Both A and R are true, but R is not the correct explanation for A.
C. A is true and R is false.
D. A is false and R is true.

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Understand the Assertion
The assertion states that "Gambusia is a fish which is being introduced into the ponds to check vector-borne disease."
- Gambusia, also known as mosquito fish, is indeed introduced into water bodies to control mosquito populations, which are vectors for diseases like malaria and dengue.

### Step 2: Understand the Reason
The reason states that "AIDS is a vector-borne disease."
- AIDS (Acquired Immunodeficiency Syndrome) is caused by the Human Immunodeficiency Virus (HIV). It is not transmitted through vectors like mosquitoes or flies; instead, it is transmitted through direct contact with infected bodily fluids (e.g., blood, sexual fluids).

### Step 3: Evaluate the Truth of Each Statement
- The assertion is **true** because Gambusia is used to control mosquito populations, which helps in reducing vector-borne diseases.
- The reason is **false** because AIDS is not a vector-borne disease; it is transmitted through direct human contact.

### Step 4: Conclusion
Since the assertion is true and the reason is false, the correct answer to the question is that the assertion is correct, but the reason is incorrect.

### Final Answer
Assertion (A) is true, and Reason (R) is false.

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