Select the group that contains only the micronutrients essential for plant growth.

Options

A. Sulphur, Molybdenum, Phosphorus
B. Zinc, Copper, Manganese
C. Magnesium, lron, Potassium
D. Boron, Chlorine, Calcium

Explanation

**Step-by-Step Solution:**

1. **Understanding Micronutrients**: Micronutrients are essential nutrients that plants require in smaller quantities compared to macronutrients. They play crucial roles in various physiological functions in plants.

2. **Identifying Micronutrients**: Common micronutrients essential for plant growth include zinc (Zn), copper (Cu), manganese (Mn), iron (Fe), boron (B), molybdenum (Mo), and chlorine (Cl).

3. **Analyzing the Options**: The question provides multiple options. We need to identify which group contains only micronutrients.

4. **Evaluating the Given Group**: The group mentioned in the video transcript includes zinc, copper, and manganese. These are all recognized as essential micronutrients for plant growth.

5. **Conclusion**: Since the group containing zinc, copper, and manganese consists solely of micronutrients, this group is the correct answer.

**Final Answer**: The group that contains only the micronutrients essential for plant growth is zinc, copper, and manganese.

---