The underground stem of which plant is modified to store and also acts as an organ of perennation to tide over unfavorable conditions for growth ?

Options

A. Gourds
B. Bougainvillea
C. Colocasia
D. Opuntia

Answer

To solve the question, "The underground stem of which plant is modified to store and also acts as an organ of perennation to tide over unfavorable conditions for growth?" we can follow these steps:

### Step 1: Understand the Question
The question asks for a plant whose underground stem is modified for two main functions: food storage and perennation (the ability to survive unfavorable conditions).

### Step 2: Analyze the Options
We have four options:
- A. Gods
- B. Bougainvillea
- C. Colocasia
- D. Opuntia

### Step 3: Identify Characteristics of Each Option
- **Gods**: This option does not correspond to a known plant. It may be a typographical error or irrelevant.
- **Bougainvillea**: This is primarily a flowering plant with no significant underground stem modifications for storage.
- **Colocasia**: Known for its edible corms, Colocasia (often referred to as taro) has an underground stem that stores food and can survive unfavorable conditions.
- **Opuntia**: This is a type of cactus, which primarily stores water in its pads rather than having a modified underground stem.

### Step 4: Determine the Correct Answer
Among the options, **Colocasia** is the only plant with an underground stem (corm) that is modified for both food storage and perennation.

### Conclusion
The answer to the question is **C. Colocasia**.

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