The sexual phase in the life cycle of Plasmodium occurs in the :

Options

A. a) liver cells of man
B. b) gut of the mosquito
C. c) salivary glands of the mosquito
D. d) body cavity of the mosquito

Explanation

To answer the question about where the sexual phase in the life cycle of Plasmodium occurs, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Plasmodium**: Plasmodium is a protozoan parasite responsible for malaria. It has a complex life cycle that involves both humans and mosquitoes.

2. **Identify the Hosts**: The life cycle of Plasmodium includes two main hosts: humans and female Anopheles mosquitoes. In humans, Plasmodium primarily resides in liver cells and red blood cells.

3. **Life Cycle Phases**: The life cycle of Plasmodium consists of asexual and sexual phases. The asexual phase occurs in humans, while the sexual phase occurs in mosquitoes.

4. **Locate the Sexual Phase**: The sexual phase of Plasmodium occurs when the parasite is in the mosquito. Specifically, it takes place in the gut of the mosquito where gametes are formed.

5. **Conclusion**: Therefore, the sexual phase in the life cycle of Plasmodium occurs in the gut of the mosquito.

### Final Answer:
The sexual phase in the life cycle of Plasmodium occurs in the **gut of the mosquito**.