Memory weakens if one of the following parts is injured.

Options

A. Medulla
B. Cerebrum
C. Cerebellum
D. Hypothalamus

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which part of the brain, if injured, would lead to weakened memory.

2. **Identifying the Options**: The options provided are:
- A) Medulla
- B) Cerebrum
- C) Cerebellum
- D) Hypothalamus

3. **Analyzing Each Option**:
- **Medulla (Option A)**: The medulla is responsible for controlling involuntary actions such as breathing and heart rate. It does not play a direct role in memory.
- **Cerebrum (Option B)**: The cerebrum is the largest part of the brain and is involved in higher brain functions, including memory, thought, and reasoning. An injury here can significantly impair memory.
- **Cerebellum (Option C)**: The cerebellum is primarily responsible for coordination and balance. It does not have a direct role in memory.
- **Hypothalamus (Option D)**: The hypothalamus regulates various autonomic functions such as temperature and hunger but is not directly involved in memory.

4. **Conclusion**: Based on the analysis, the cerebrum (Option B) is the part of the brain that, if injured, would lead to weakened memory.

5. **Final Answer**: The correct answer is **B) Cerebrum**.

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