Explanation:

- Paraffin wax is derived from petroleum.

- It is a byproduct of the oil refining process.

- Option 1: Petroleum - Correct. Paraffin wax is primarily obtained from crude oil.

- Option 2: Coal - Paraffin-like wax can be derived from coal, but it is not traditional paraffin wax.

- Option 3: Animal fat - Tallow is a wax-like substance from animal fat but not paraffin wax.

- Option 4: Vegetable oils - These produce other types of waxes, like carnauba, but not paraffin wax.