Vitamin excreted by urine in higher vertebrates is

Options

A. a) A
B. b) D
C. c) K
D. d) C

Answer

To solve the question regarding which vitamin is excreted by urine in higher vertebrates, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks which vitamin is excreted in urine by higher vertebrates.

2. **Identify Vitamin Categories**: Vitamins are classified into two main categories:
- **Water-Soluble Vitamins**: These include Vitamin B and Vitamin C. They are not stored in the body and are excreted through urine.
- **Fat-Soluble Vitamins**: These include Vitamins A, D, E, and K. They can be stored in the body's fatty tissues and are not typically excreted in urine.

3. **Analyze the Options**:
- **Option A: A** - This is a fat-soluble vitamin.
- **Option B: D** - This is a fat-soluble vitamin.
- **Option C: K** - This is a fat-soluble vitamin.
- **Option D: C** - This is a water-soluble vitamin.

4. **Determine the Correct Answer**: Since water-soluble vitamins are excreted in urine, and the only water-soluble vitamin listed in the options is Vitamin C (Option D), this is the correct answer.

5. **Conclusion**: The vitamin that is excreted by urine in higher vertebrates is **Vitamin C**.

### Final Answer:
The vitamin excreted by urine in higher vertebrates is **Vitamin C** (Option D).

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