Question

a dermatologist is preparing a presentation on acne. read the piece of information in each row, then select the section where it fits best. prescription medications such as antibiotics or vitamin a derivatives may help control more severe cases of acne. according to the national institute of arthritis and musculoskeletal and skin diseases, acne affects about eighty percent of all people from the ages of eleven to thirty. mild cases of acne may be controlled by over - the - counter products containing benzoyl peroxide or salicylic acid. acne may develop when pores on the surface of the skin become clogged with excess sebum (oil), dead skin cells, or bacteria.

Explanation:

1. "Prescription medications such as antibiotics or vitamin A derivatives may help control more severe cases of acne." - This is about treatment methods for acne, so it fits in the Treatments section.
2. "According to the National Institute of Arthritis and Musculoskeletal and Skin Diseases, acne affects about eighty percent of all people from the ages of eleven to thirty." - This gives information about how common acne is among a certain age - group, so it belongs in the Frequency section.
3. "Mild cases of acne may be controlled by over - the - counter products containing benzoyl peroxide or salicylic acid." - This is another treatment - related statement, so it goes in the Treatments section.
4. "Acne may develop when pores on the surface of the skin become clogged with excess sebum (oil), dead skin cells, or bacteria." - This explains what causes acne, so it fits in the Causes section.

Answer:

1. Treatments
2. Frequency
3. Treatments
4. Causes