The layer of eye ball caontaining many blood vessels and looks bluish in colour is

Options

A. cornea
B. sclera
C. choroid
D. pupil

Answer

To solve the question regarding which layer of the eyeball contains many blood vessels and appears bluish in color, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Layers of the Eyeball**:
- The eyeball consists of three main layers: the outer layer (sclera), the middle layer (choroid), and the inner layer (retina).

2. **Analyze Each Option**:
- **Option A: Cornea** - The cornea is the transparent front part of the eye and does not contain many blood vessels. It is not bluish in color.
- **Option B: Sclera** - The sclera is the white outer layer of the eyeball. It does not contain many blood vessels and is not bluish.
- **Option C: Choroid** - The choroid is the middle layer of the eye, located between the sclera and the retina. It is rich in blood vessels and has a bluish appearance due to the presence of pigment cells.
- **Option D: Pupil** - The pupil is the opening in the center of the iris and does not have any blood vessels or color.

3. **Conclusion**:
- Based on the analysis, the layer of the eyeball that contains many blood vessels and appears bluish in color is the **choroid** (Option C).

### Final Answer:
The layer of the eyeball containing many blood vessels and looks bluish in color is **C. Choroid**.