Read the following passage carefully. L helps to maintain strong eyesight and healthy skin. M is required for normal growth of bones in children. N is essential for proper functioning of muscles and nerves. O is needed for natural clotting of blood. Identify L, M, N and O and select the incorrect statement regarding them.

Options

A. M is produced when the skin is exposed to sunlight.
B. N is a mineral, deficiency of which causes spasms, poor digestion, anxiety and sleeplessness.
C. Cod liver oil is a good source of both L and O.
D. O is synthesised in our body by bacteria present in the gut.

Explanation

To solve the question, we need to identify the nutrients represented by L, M, N, and O based on the descriptions provided in the passage. Let's break it down step by step.

### Step 1: Identify L
- The passage states that L helps to maintain strong eyesight and healthy skin.
- This description is characteristic of **Vitamin A**.

### Step 2: Identify M
- The passage mentions that M is required for normal growth of bones in children.
- This is typically associated with **Vitamin D**, which is essential for bone health and growth.

### Step 3: Identify N
- The passage indicates that N is essential for the proper functioning of muscles and nerves.
- This function is primarily attributed to **Calcium**. Calcium is crucial for muscle contraction and nerve transmission.

### Step 4: Identify O
- The passage states that O is needed for natural clotting of blood.
- This function is associated with **Vitamin K**, which plays a significant role in blood coagulation.

### Step 5: Compile the Identified Nutrients
- L = Vitamin A
- M = Vitamin D
- N = Calcium
- O = Vitamin K

### Step 6: Identify the Incorrect Statement
Now, we need to select the incorrect statement regarding L, M, N, and O. Based on the information:
- Vitamin A (L) is indeed for eyesight and skin.
- Vitamin D (M) is indeed for bone growth.
- Calcium (N) is indeed essential for muscles and nerves.
- Vitamin K (O) is indeed necessary for blood clotting.

If we were to create an incorrect statement, it could be something like:
- "Vitamin D is essential for eyesight." (This is incorrect because Vitamin D is primarily for bone health, not eyesight.)

### Final Answer
- L = Vitamin A
- M = Vitamin D
- N = Calcium
- O = Vitamin K
- An example of an incorrect statement could be: "Vitamin D is essential for eyesight."