The body weight contributed by muscles in a human adult is `:`

Options

A. `10-40%`
B. `40-50%`
C. `50-60%`
D. `60-70%`

Answer

To determine the body weight contributed by muscles in a human adult, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Muscle Contribution**: Recognize that muscles play a significant role in the human body, providing structure and support for movement.

2. **Percentage of Body Weight**: Research and analyze the typical percentage of body weight that muscles contribute in a human adult.

3. **General Consensus**: It is established that muscles account for approximately 40 to 50 percent of total body weight in an adult human.

4. **Select the Correct Answer**: Based on the information, the correct answer to the question is that muscles contribute about 40 to 50 percent of body weight.

5. **Conclusion**: Therefore, the body weight contributed by muscles in a human adult is approximately 40 to 50 percent.

### Final Answer:
The body weight contributed by muscles in a human adult is approximately 40 to 50 percent.

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