A `C_4` plant is

Options

A. Sugarcane
B. Tomato
C. Mango
D. Apple

Answer

To determine which plant is a C4 plant among the given options, we can follow these steps:

### Step-by-Step Solution:

1. **Understand C4 Plants**: C4 plants utilize a specific photosynthetic pathway known as the C4 pathway or the Hatch-Slack pathway. This pathway is characterized by the formation of a four-carbon compound during the process of carbon fixation.

2. **Identify Characteristics of C4 Plants**: C4 plants are typically more efficient in photosynthesis under high light intensity, high temperatures, and low carbon dioxide concentrations. They are often found in tropical and subtropical regions.

3. **Analyze the Given Options**:
- **Option 1: Sugarcane**: This is a well-known C4 plant that thrives in warm climates and is efficient in photosynthesis.
- **Option 2: Tomato**: This is a C3 plant, which means it uses the C3 pathway for photosynthesis.
- **Option 3: Mango**: This is also a C3 plant and does not utilize the C4 pathway.
- **Option 4: Apple**: Like tomato and mango, apple is a C3 plant.

4. **Conclusion**: Based on the characteristics of C4 plants and the analysis of the options, the only C4 plant listed is **sugarcane**.

### Final Answer:
A C4 plant is **sugarcane** (Option 1).