This type of multicellular gland branching has a rounded secretory part attached to a single unbranched duct and is found mainly in sebaceous glands.

Options

A. Simple coiled tubular
B. Compound tubular
C. Compound tuboloacinar
D. Simple branched acinar

Answer

To solve the question regarding the type of multicellular gland described, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question describes a multicellular gland with a rounded secretory part, a single unbranched duct, and mentions that it is found mainly in sebaceous glands.

2. **Identifying Gland Types**: Multicellular glands can be classified based on two criteria:
- The branching of their ducts (branched or unbranched).
- The shape of their secretory part (tubular or rounded).

3. **Analyzing Duct Structure**:
- Since the question specifies that the gland has a **single unbranched duct**, we categorize it as a **simple gland**.

4. **Analyzing Secretory Part Shape**:
- The secretory part is described as **rounded**. Glands with a rounded secretory part are referred to as **acinar glands**.

5. **Combining Classifications**:
- Since the gland is simple (unbranched duct) and acinar (rounded secretory part), we combine these terms to describe the gland as a **simple acinar gland**.

6. **Considering Branching**:
- The question also mentions that the secretory part is branched. Therefore, we need to adjust our classification to **simple branched acinar gland**.

7. **Final Conclusion**:
- The gland described in the question is a **simple branched acinar gland**, which is characteristic of sebaceous glands.

### Final Answer:
The type of gland is a **simple branched acinar gland**.

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