The plant which is not a component of energy cropping is
(a) Sugarcane
(b) Sugar Beet
(c) Tapioca
(d) Euphorbia

Options

A. Sugarcane
B. Sugar Beet
C. Tapioca
D. Euphorbia

Answer

To solve the question about which plant is not a component of energy cropping, we will analyze each option based on their relevance to energy cropping.

### Step-by-Step Solution:

1. **Understanding Energy Cropping**:
- Energy cropping refers to the cultivation of specific plants that can be harvested to produce biofuels, particularly ethanol or bioethanol. These crops are specifically chosen for their high biomass yield and ability to convert into energy.

2. **Analyzing the Options**:
- **Option (a) Sugarcane**:
- Sugarcane is widely recognized as an energy crop because it is commonly used to produce ethanol.
- **Option (b) Sugar Beet**:
- Sugar beet is also used in energy cropping for ethanol production.
- **Option (c) Tapioca**:
- Tapioca is another name for cassava, which is known to be an energy crop used for bioethanol production.
- **Option (d) Euphorbia**:
- Euphorbia is not typically used for energy cropping. While it may have other uses, it does not yield ethanol or bioethanol.

3. **Conclusion**:
- Based on the analysis, the plant that is not a component of energy cropping is **Euphorbia**. Therefore, the correct answer is **(d) Euphorbia**.

### Final Answer:
**(d) Euphorbia**

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