请问concern在做动词时，concerning和about是等价的吗？？？
例如大全３５题
According to a panel of health officials, there has been a great deal of confusion in the medical profession about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to health.
(A) about whether obesity is a biological disorder posing serious health risks or a condition more related to appearance than to
如果about换成concerning，答案是否也正确？？？
谢谢牛人们 | 
