Pimples and acne are fomed due to increased activity of :
A.Adrenal glands B.Sebaceous glands C.Thyroid gland D.Sweat glands

Options

A. A and B
B. B and C
C. A and C
D. B and D

Answer

To solve the question regarding the formation of pimples and acne, we need to analyze the options provided:

1. **Understanding the glands involved**:
- **Adrenal glands**: These are endocrine glands that produce hormones but are not directly involved in the formation of pimples and acne.
- **Sebaceous glands**: These are exocrine glands that secrete sebum (oil) into hair follicles. Increased activity of these glands can lead to clogged pores, which can cause pimples and acne.
- **Thyroid gland**: This is another endocrine gland that regulates metabolism and does not directly contribute to acne.
- **Sweat glands**: These glands help in regulating body temperature through sweat. While they can contribute to skin issues, they are not the primary cause of acne.

2. **Identifying the correct answer**:
- Since pimples and acne are primarily caused by the increased activity of sebaceous glands, the correct answer is **B. Sebaceous glands**.
- The mention of sweat glands in the video suggests that they also play a role in skin health, but they are not the main contributors to acne formation.

3. **Conclusion**:
- The best answer to the question is **B. Sebaceous glands**.

### Final Answer:
**B. Sebaceous glands**