## **Core Concept**
The question tests knowledge of the histological structure of glandular ducts, specifically focusing on the type of epithelium lining these ducts. Stratified cuboidal epithelium is a type of epithelial lining composed of multiple layers of cuboidal cells, typically found in glands and their ducts.

## **Why the Correct Answer is Right**
The correct answer, which is not specified here but implied to be one of the options, likely corresponds to a gland whose duct is lined by a different type of epithelium. Most exocrine glands have ducts lined by stratified cuboidal epithelium, but there are exceptions based on the specific function and location of the gland.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option would be incorrect if it represents a gland whose duct is indeed lined by stratified cuboidal epithelium, aligning with the common histological feature of many exocrine glands.
- **Option B:** Similarly, if this option represents another gland with ducts lined by stratified cuboidal epithelium, it would be incorrect for the same reason.
- **Option C:** This would also be incorrect if it is a gland with stratified cuboidal epithelium lining its ducts.
- **Option D:** This option is stated as the correct answer, implying its duct does not have stratified cuboidal epithelium.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that the type of epithelium lining glandular ducts can be indicative of the gland's function and can vary significantly. For instance, the salivary glands have ducts lined by simple columnar or stratified cuboidal epithelium, but the specific type can change along the ductal system.

## **Correct Answer:** D.