Frog reproduces:-

Options

A. in water
B. on trees
C. in sand
D. on lotus flowers in water

Answer

### Step-by-Step Solution:

1. **Identify the Reproductive Environment**: Frogs primarily reproduce in water. This is essential for their reproductive process as their eggs require a moist environment to develop.

2. **Understand the Reproductive Method**: Frogs are classified as oviparous, meaning they lay eggs. The fertilization of these eggs occurs outside the female frog's body.

3. **Explain the Mating Behavior**: During reproduction, male and female frogs engage in a mating posture known as Amplexus. In this position, the male frog grasps the female frog to ensure that he is in the right position to fertilize the eggs as they are laid.

4. **Conclude the Correct Answer**: Based on the information, frogs reproduce in water, making it the correct answer to the question.

### Final Answer:
Frogs reproduce in water.

---