Choose the correct options from the following
I. Annual and beinnial plants show clear cut vegetative, reproductive and senscent phases
II. Bamboo species flower only once in life generally after 50-100 years.
III. Strobilanthus kunthiana is a monocarpic plant which flowers only once - after 6 years.

Options

A. I, III are correct
B. II is correct
C. I, II are correct
D. III is correct

Answer

To solve the question, we need to evaluate each of the three statements provided and determine their accuracy.

### Step-by-Step Solution:

1. **Evaluate Statement I:**
- **Statement:** "Annual and biennial plants show clear cut vegetative, reproductive, and senescent phases."
- **Analysis:** Annual plants complete their life cycle in one year, while biennial plants take two years to complete their life cycle. Both types of plants exhibit distinct phases:
- **Vegetative Phase:** Growth phase where the plant develops leaves and stems.
- **Reproductive Phase:** Phase where the plant flowers and produces seeds.
- **Senescent Phase:** Aging phase where the plant begins to die after reproduction.
- **Conclusion:** This statement is **correct**.

2. **Evaluate Statement II:**
- **Statement:** "Bamboo species flower only once in life generally after 50-100 years."
- **Analysis:** Bamboo species are known for their unique flowering behavior, where they flower only once in their lifetime, typically after a long period of time, often ranging from 50 to 100 years.
- **Conclusion:** This statement is **correct**.

3. **Evaluate Statement III:**
- **Statement:** "Strobilanthus kunthiana is a monocarpic plant which flowers only once - after 6 years."
- **Analysis:** Strobilanthus kunthiana, also known as Neelakurinji, is indeed a monocarpic plant, meaning it flowers once in its lifetime. However, it typically flowers after 12 years, not 6 years.
- **Conclusion:** This statement is **incorrect**.

### Final Evaluation of Options:
- **Option 1:** First and third are correct. (Incorrect)
- **Option 2:** Only second is correct. (Incorrect)
- **Option 3:** First and second are correct. (Correct)
- **Option 4:** Only third is correct. (Incorrect)

### Final Answer:
The correct option is **Option 3: First and second are correct.**

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