Graphite is an allotrope of -

Options

A. Lead
B. Carbon
C. Phosphorus
D. Sulphur

Explanation

To answer the question "Graphite is an allotrope of -", we will follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Allotropes**:
- Allotropes are different physical forms in which an element can exist. For example, carbon can exist in multiple forms.

2. **Identify the Element in Question**:
- The question specifically asks about graphite, which is a form of carbon.

3. **List the Allotropes of Carbon**:
- Carbon has several allotropes, including:
- Diamond
- Graphite
- Buckminsterfullerene (also known as buckyballs)

4. **Determine the Correct Answer**:
- Since graphite is one of the allotropes of carbon, the answer to the question is that graphite is an allotrope of carbon.

5. **Review Other Options**:
- The question may provide other elements as options (like lead, phosphorus, and sulfur). However, these elements do not relate to graphite.
- Lead does not have allotropes, while phosphorus and sulfur have their own allotropes, but they are not related to graphite.

6. **Conclude the Answer**:
- Therefore, the correct answer is that graphite is an allotrope of carbon.

### Final Answer:
Graphite is an allotrope of **carbon**.