The forebrain develops into

Options

A. Diencephalon and Cerebrum
B. Diencephalon and Cerebellum
C. Diencephalon and Medulla
D. Diencephalon and Pons

Answer

**Step-by-Step Solution:**

1. **Understanding the Forebrain Development**: The forebrain is one of the primary divisions of the brain that develops during embryonic growth. It is essential to know what structures arise from the forebrain.

2. **Identifying the Components of the Forebrain**: The forebrain divides into two main parts during the five-vesicle stage of brain development:
- **Telencephalon**: This part develops into the Cerebrum.
- **Diencephalon**: This part includes structures such as the Thalamus, Hypothalamus, Subthalamus, and Epithalamus.

3. **Evaluating the Options**:
- **Option 1: Diencephalon and Cerebrum**: This is correct because both the Diencephalon and Telencephalon (which develops into the Cerebrum) are derived from the forebrain.
- **Option 2: Diencephalon and Cerebellum**: This is incorrect because the Cerebellum is not part of the forebrain; it is part of the hindbrain.
- **Option 3: Diencephalon and Medulla**: This is also incorrect as the Medulla is part of the hindbrain and does not develop from the forebrain.
- **Option 4: Diencephalon and Pons**: This option is incorrect as well since the Pons is part of the hindbrain.

4. **Conclusion**: Based on the analysis of the options, the correct answer is **Option 1: Diencephalon and Cerebrum**.