Name the substance which is used in candle and ointment:

Options

A. Lubricating oil
B. Petrol
C. Bitumen
D. Paraffin wax

Explanation

To answer the question "Name the substance which is used in candle and ointment," we can follow these steps:

### Step 1: Identify the Options
We need to look at the options provided and analyze each one to see if it is used in candles and ointments.

### Step 2: Analyze Each Option
1. **Lubricating Oil**: This substance is primarily used for lubrication in machinery and is not used in candles.
2. **Petrol**: Petrol is a fuel used in vehicles and is not suitable for use in candles or ointments.
3. **Bitumen**: Bitumen is a type of coal and is used in road construction and roofing, but it is not used in candles or ointments.
4. **Paraffin Wax**: This is a wax derived from petroleum and is commonly used in making candles and is also used in some ointments.

### Step 3: Conclusion
After analyzing all the options, we find that **Paraffin Wax** is the substance that is used in both candles and ointments.

### Final Answer
The substance which is used in candle and ointment is **Paraffin Wax**.

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