If the growing plant is decapitated, then

Options

A. Its growth stops
B. Leaves become yellow and fall down
C. Axillary buds are inactivated
D. Axillary buds are activated

Answer

### Step-by-Step Solution:

1. **Understanding Decapitation**: Decapitation in plants refers to the removal of the apical bud, which is the growing tip of the plant. This bud is crucial for the vertical growth of the plant.

2. **Effect on Growth**: When the apical bud is removed, it does not stop the growth of the plant. Instead, it alters the growth pattern. The removal of the apical bud leads to the activation of the axillary (or lateral) buds.

3. **Role of Axillary Buds**: Axillary buds are located at the leaf axils (the angle between the leaf and the stem). When the apical bud is removed, these axillary buds can now grow and develop into new branches or shoots, effectively compensating for the loss of the apical bud.

4. **Consequences of Decapitation**:
- The growth of the plant continues, but it may change direction or form due to the activation of the axillary buds.
- The leaves do not necessarily become yellow or fall off as a direct result of decapitation; this is a misconception.
- The axillary buds are indeed activated, allowing for new growth.

5. **Conclusion**: Therefore, the correct answer to the question is that when a growing plant is decapitated, the axillary buds are activated.

### Final Answer:
When a growing plant is decapitated, the axillary buds are activated.

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