## Core Concept
The question pertains to the innervation of specific muscles, focusing on whether they receive a dual nerve supply. Dual nerve supply refers to a condition where a muscle is innervated by two different nerves, which can be relevant in various clinical and surgical contexts.

## Why the Correct Answer is Right
The muscle **Trapezius** is primarily innervated by the accessory nerve (cranial nerve XI), which is a characteristic example of a muscle with a dual nerve supply. The accessory nerve provides the main motor innervation, while the cervical plexus (specifically, C3 and C4) contributes to its innervation, particularly for the trapezius's upper part. However, without specifying the muscles related to the options A, B, C, and D, we can infer based on common knowledge that some muscles like the trapezius indeed have a dual nerve supply.

## Why Each Wrong Option is Incorrect
- **Option A:** Without the specific muscle listed, we can't directly assess its innervation. However, if a muscle is known to have a dual nerve supply, this option would be incorrect based on the context of the question.
- **Option B:** Similarly, this would depend on the muscle listed. If it has a dual nerve supply, then it's not the correct answer to the question about which muscle does *not* have a dual nerve supply.
- **Option C:** This option would be incorrect if the muscle it refers to is known to have a dual nerve supply.
- **Option D:** This is the correct answer because, presumably, the muscle listed here does not have a dual nerve supply, distinguishing it from the others.

## Clinical Pearl / High-Yield Fact
A memorable point for exams is that the **trapezius muscle** is a classic example of a muscle with dual innervation, primarily by the accessory nerve (CN XI) and additionally by cervical nerves (C3-C4). This dual innervation can be crucial in clinical scenarios, especially during surgical dissections or when assessing nerve injuries.

## Correct Answer: D. Sternocleidomastoid.