Lower eyelid of Frog is

Options

A. Large and opaque
B. Small and semitransparent
C. Nearly immovable
D. Both B and C

Answer

To answer the question about the lower eyelid of a frog, we can break down the information step by step.

### Step-by-Step Solution:

1. **Understand the Structure of Frog Eyelids**: Frogs have three eyelids. It is important to know the characteristics of each eyelid to answer the question correctly.

2. **Identify the Upper Eyelid**: The upper eyelid of the frog is slightly movable. This means it can open and close to some extent, which is typical for many animals.

3. **Focus on the Lower Eyelid**: The question specifically asks about the lower eyelid. The lower eyelid of a frog is nearly immovable. This means it does not move much, if at all, and stays in a fixed position.

4. **Consider the Third Eyelid**: Frogs also have a third eyelid, which is semi-transparent and acts as a protective covering known as the nictitating membrane. However, this is not the focus of the question.

5. **Evaluate the Options**: The options given are:
- A) Large and opaque
- B) Small and semi-transparent
- C) Nearly immovable
- D) Both B and C

Since we have established that the lower eyelid is nearly immovable, we can conclude that option C is correct.

6. **Final Answer**: The correct answer to the question "Lower eyelid of Frog is" is **C) Nearly immovable**.