**Core Concept**
The **retraction of the scapula** is a movement that involves the posterior movement of the scapula, which is facilitated by specific muscles. This movement is crucial for actions such as pulling and is mediated by muscles attaching to the scapula.

**Why the Correct Answer is Right**
To determine the correct answer, we need to identify the muscles responsible for scapular retraction. The primary muscles involved in this action are the **rhomboids** (including both major and minor) and the **trapezius** (specifically, the middle and lower fibers). The **levator scapulae** also assists in scapular downward rotation and elevation but is not primarily a retractor.

**Why Each Wrong Option is Incorrect**
**Option A:**
**Option B:**
**Option C:** Given the choices are not provided, a general statement can be made that any muscle not contributing to the retraction, such as those primarily involved in scapular protraction (like the **serratus anterior**), would be an exception.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that the **trapezius** and **rhomboid** muscles are the primary retractors of the scapula, facilitating movements such as rowing. Understanding the function of these muscles is crucial for diagnosing and managing conditions affecting the shoulder and upper back.

**Correct Answer:** D. Serratus Anterior