**Core Concept**
The **parotid gland** and its secretory duct, also known as **Stenson's duct**, play a crucial role in salivary secretion. Stenson's duct is significant for its course and relations, as it traverses through various structures to open in the oral cavity.

**Why the Correct Answer is Right**
Given the anatomy of the parotid gland and the course of Stenson's duct, it is essential to recall the structures it pierces to reach the oral cavity. Normally, Stenson's duct pierces the **masseter muscle**, the **buccal fat pad**, and the **buccinator muscle** before opening into the oral cavity.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not provided, so we cannot assess its correctness directly.
**Option B:** Similarly, without the specific option details, we cannot comment on its accuracy.
**Option C:** Assuming this option mentions a structure that Stenson's duct indeed pierces, it would be incorrect as the answer.
**Option D:** If this option refers to a structure not typically associated with the path of Stenson's duct, it could potentially be correct, but without specifics, we cannot confirm.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that Stenson's duct opens into the oral cavity near the second maxillary molar, and its course can be relevant in both surgical interventions and understanding pathology related to the parotid gland.

**Correct Answer:** D. The correct answer is not explicitly provided in the query, so a direct answer cannot be given based on the information available.