Retina has

Options

A. Rods and cones only
B. Rods only
C. Cones only
D. rods, cones and neuroganglion cells.

Answer

### Step-by-Step Solution

1. **Understanding the Retina**: The retina is a crucial part of the eye that plays a significant role in vision. It contains specialized cells that are responsible for converting light into neural signals.

2. **Identifying Photoreceptor Cells**: The retina has two main types of photoreceptor cells:
- **Rods**: These cells are sensitive to low light levels and are responsible for scotopic (night) vision. They contain a pigment called rhodopsin.
- **Cones**: These cells function in brighter light and are responsible for color vision and visual acuity. They contain pigments such as iodopsin and photopsin.

3. **Recognizing Other Cells in the Retina**: In addition to rods and cones, the retina also contains:
- **Ganglion Cells**: These are nerve cells that process visual information and transmit it to the brain. They are often referred to as neuro ganglion cells.

4. **Conclusion**: The retina contains rods, cones, and neuro ganglion cells. Therefore, the correct answer to the question "Retina has" is **rods, cones, and neuro ganglion cells**.

### Final Answer
The retina has rods, cones, and neuro ganglion cells.

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