spike occurs in

Options

A. banana
B. mulberry
C. wheat
D. bottle brush

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of inflorescence known as a "spike" and which plant exhibits this characteristic.

2. **Analyzing the Options**: The options provided are banana, mulberry, wheat, and bottle brush. We need to determine which of these plants has a spike inflorescence.

3. **Identifying Inflorescence Types**:
- **Bottle Brush**: The bottle brush plant has a spike inflorescence characterized by a long peduncle with bisexual and sessile flowers. This is a classic example of a spike.
- **Banana**: The banana plant has a spadix inflorescence, which is a type of spike but with a fleshy axis and both male and female flowers.
- **Mulberry**: The mulberry plant exhibits a caducous type of inflorescence, which is a peduncleous spike that bears unisexual flowers.
- **Wheat**: Wheat has a spikelet, which is a small specialized spike; however, it is not the same as the spike inflorescence.

4. **Conclusion**: Based on the definitions and characteristics of the inflorescence types, the correct answer to the question "spike occurs in" is **bottle brush**.

**Final Answer**: Bottle brush

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