【求助】IR一道题

343844842

PatientDuring her adolescence, Pam began developing chronic acne. At first, she would wash her face everyday - some of her classmates suggested she had acne because her face was not clean. She did notice her face got very oily once adolescence began. So she started washing her face 3 times a day with a cleanser.

Yet, her acne persisted. Washing more times in a day wouldn't help. Pam was desperate for help, reaching out to her dermatologist who recommended various creams. Some of them helped but she was still getting a lot of acne - worse, some of the older acne was creating hyperpigmented dark spots on her face and leaving acne marks and scars.

Chronic acne was the root cause of her problems and she needed some treatment options.

Which of the following statements can be inferred from the information provided in the three passage tabs?

• AA dirty face is the root cause for acne.
• BExcessive collagen production is a root cause for acne.
• CA patient who is no longer breaking out with acne can still appear to have acne because of acne marks and scars that have been left behind by prior acne breakouts.
• DA combination of Isolaz, Fraxel, Microdermabrasion, and acne creams will cure Pam's case of acne.
• EA blue laser that treats surface level bacteria can get rid of acne in Pam's case.
  

选A？？何解