Which set is correct

Options

A. Sebum – Analgesic
B. Vitamin – Nicotine
C. Corpuscallosum – Grrafian follicle
D. Bundle of His – Purkinje fibre

Explanation

To determine which set is correct from the given options, we need to analyze each term and see if they are related or matched appropriately. Here’s a step-by-step breakdown of the solution:

### Step 1: Analyze Each Term
- **Sebum**: This is an oily substance secreted by sebaceous glands in the skin.
- **Analgesic**: This refers to a type of medication that relieves pain.
- **Vitamin**: Refers to organic compounds that are essential for normal growth and nutrition.
- **Nicotine**: A stimulant found in tobacco, not a vitamin.
- **Corpus Callosum**: A part of the brain that connects the left and right hemispheres.
- **Graphene Follicle**: A structure in the ovary that contains an immature egg.
- **Bundle of His**: A collection of heart muscle cells specialized for electrical conduction.
- **Purkinje Fibers**: Fibers in the heart that help conduct electrical impulses to the heart muscle.

### Step 2: Identify Relationships
1. **Sebum and Analgesic**: No direct relationship; sebum is a secretion, while analgesics are drugs.
2. **Vitamin and Nicotine**: No relationship; nicotine is not a vitamin.
3. **Corpus Callosum and Graphene Follicle**: No relationship; one is part of the brain, the other is part of the ovary.
4. **Bundle of His and Purkinje Fibers**: Both are part of the heart's conduction system.

### Step 3: Conclusion
From the analysis, the only correct match is between the **Bundle of His** and **Purkinje Fibers**. Therefore, the correct set is option D, which represents components of the heart's conduction system.

### Final Answer
The correct set is **D: Bundle of His and Purkinje Fibers**.

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