Melatonin is secreted by……….which is located at ………..

Options

A. `{:((i),"(ii)"),("Pineal","Dorsal side of the forebrain"):}`
B. `{:((i),"(ii)"),("Pineal","Middle side of the forebrain"):}`
C. `{:((i),"(ii)"),("Pineal","Base of the diencephalon"):}`
D. `{:((i),"(ii)"),("Pineal","Ventral side of the forebrain"):}`

Answer

To answer the question "Melatonin is secreted by……….which is located at ………..", we can break it down into two parts: identifying the gland that secretes melatonin and its location.

### Step-by-Step Solution:

1. **Identify the Gland**:
- Melatonin is a hormone that is primarily secreted by the **pineal gland**.

2. **Determine the Location**:
- The pineal gland is located at the **dorsal side of the forebrain**.

3. **Combine the Information**:
- Therefore, the complete answer is: "Melatonin is secreted by the **pineal gland**, which is located at the **dorsal side of the forebrain**."

### Final Answer:
Melatonin is secreted by **pineal gland** which is located at **dorsal side of the forebrain**.

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