In some plants a slender lateral branch arises from the base of the main axis and after growing aerially for some time arch downwards to touch the ground. Here we are taking about

Options

A. Pistia and Eichhornia
B. Mint and Jasmine
C. Banana, Pineapple and Chrysanthemum
D. Opuntia and Euphorbia

Answer

To solve the question, we need to identify the type of growth pattern described in the question. The key points are:

1. A slender lateral branch arises from the base of the main axis.
2. This branch grows aerially for some time.
3. It then arches downwards to touch the ground.

Now, let's analyze the options provided:

### Step 1: Understanding the Growth Pattern
The question describes a growth pattern where a lateral branch grows out from the main stem and then bends down to make contact with the ground. This is characteristic of certain plants that use this method for vegetative propagation.

### Step 2: Analyzing the Options
- **Option A: Pistia and Echinodorus** - These are aquatic plants and do not typically exhibit this growth pattern.
- **Option B: Mint and Jasmine** - Both of these plants produce slender lateral branches that can grow aerially and then arch down to touch the ground, allowing them to root and propagate.
- **Option C: Banana, Pineapple, and Chrysanthemum** - These plants have different propagation methods, primarily through underground stems or suckers.
- **Option D: Bougainvillea and Euphorbia** - While these plants have various growth habits, they do not specifically fit the description given in the question.

### Step 3: Conclusion
Based on the analysis, the correct answer is **Option B: Mint and Jasmine**. These plants exhibit the described growth pattern of lateral branches that grow aerially and then arch down to touch the ground.

### Final Answer
**The correct answer is B. Mint and Jasmine.**

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