[单项选择]

Teenagers and young adults in the US are increasingly being diagnosed with skin cancer, according to doctors who warn that the development could lead to an outbreak of deadly aches on the skin as these patients get older. Doctors are especially disturbed by the numbers of younger people they are treating, which suggests that messages about avoiding the sun still aren’t getting through and that the tanned skin (晒黑的皮肤) that was made popular by French designer Coco Chanel in the 1920s remains a sought- after look today.
Although doctors lack the data to know what exactly is behind the rise in skin cancers among young people, they suggest several factors: more time in the sun, improper use of sunscreens and a rise in tanning salon (阳光浴沙龙) visits. Skin doctors believe that young people are generally spending more time in the sun than their parents did and are either not using enough sunscreen or failing to apply it properly. They also claimed that many Americans,
A. from 1986 to 1996
B. from 1987 to 1997
C. during 1997
D. during 1996

Teenagers and young adults in the US are increasingly being diagnosed with skin cancer, according to doctors who warn that the development could lead to an outbreak of deadly aches on the skin as these patients get older. Doctors are especially disturbed by the numbers of younger people they are treating, which suggests that messages about avoiding the sun still aren’t getting through and that the tanned skin (晒黑的皮肤) that was made popular by French designer Coco Chanel in the 1920s remains a sought- after look today.
Although doctors lack the data to know what exactly is behind the rise in skin cancers among young people, they suggest several factors: more time in the sun, improper use of sunscreens and a rise in tanning salon (阳光浴沙龙) visits. Skin doctors believe that young people are generally spending more time in the sun than their parents did and are either not using enough sunscreen or failing to apply it properly. They also claimed that many Americans,
A. The French designer advised that people avoid the sun.
B. People have not thoroughly accepted doctor's advice.
C. Doctors have advised that people avoid the sun.
D. People are still in favor of tanned skins.