**Core Concept**
Retinitis pigmentosa (RP) is a group of **genetic disorders** affecting the **retina**, characterized by progressive **photoreceptor degeneration**. This leads to **night blindness** and gradual loss of **peripheral vision**. The underlying pathophysiology involves **mutations** in various **genes** encoding proteins crucial for **phototransduction**.

**Why the Correct Answer is Right**
Without the specific options provided, the general approach to this question involves understanding the typical features and progression of retinitis pigmentosa. Key aspects include its genetic basis, symptoms such as night blindness, and the potential for other systemic associations in certain syndromic forms.

**Why Each Wrong Option is Incorrect**
**Option A:** Would be incorrect if it stated a common symptom or characteristic of RP, such as night blindness or progressive vision loss.
**Option B:** Might be wrong if it described a known genetic pattern of inheritance or a common age of onset.
**Option C:** Could be incorrect if it mentioned a specific **gene mutation** commonly associated with RP.
**Option D:** Would be wrong if it discussed the potential for **syndromic associations** in some forms of RP.

**Clinical Pearl / High-Yield Fact**
A crucial point to remember is that retinitis pigmentosa can occur in **isolated** forms or as part of **syndromes** that affect other organs, highlighting the importance of a thorough clinical evaluation.

**Correct Answer:**