Petroleum yilding plants belong to

Options

A. Euphorbiaceae
B. Apocynaceae
C. Asclepiadaceae
D. All of the above

Answer

To determine which group of plants yield petroleum, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about petroleum-yielding plants and which category they belong to.

2. **Identify the Options**: The options provided are:
- A) Eucalyptus
- B) Apocynus
- C) Asclepias
- D) All of the above

3. **Research Petroleum Yielding Plants**: Petroleum-yielding plants are known for their latex, which contains long-chain hydrocarbons that can be processed into fuels.

4. **Examine Each Option**:
- **Eucalyptus**: While Eucalyptus trees are known for their oil, they are not primarily recognized as petroleum-yielding plants.
- **Apocynus**: This plant is part of the Apocynaceae family, which has been noted for its latex that can yield hydrocarbons.
- **Asclepias**: This plant belongs to the Asclepiadaceae family and also produces latex that can be processed for hydrocarbons.

5. **Conclusion**: Since both Apocynus and Asclepias are known for their latex containing hydrocarbons, and considering that Eucalyptus is not primarily recognized for this purpose, the best answer is that all three families (Euphorbiaceae, Apocynaceae, and Asclepiadaceae) can yield petroleum products. Therefore, the correct answer is **D) All of the above**.

### Final Answer:
**D) All of the above**