1. Attention Deficit Disorder (ADD) is a condition characterized by an Inability to focus on any topic for a prolonged period of time, and is especially common among children five to ten years old. A recent study has shown that 85 percent of seven-year-old children with ADD watch, on average, more than five hours of television a day. It is therefore very likely that Ed, age seven, has ADD, since he watches roughly six hours of television a day.
The argument above is flawed because It
(A) cites as a direct causal mechanism a factor that may only be a partial cause of the condition in question -> this is not correct since we are not sure whether watching TV ios one of the reasons for ADD or not
(B) fails to Indicate the chances of having ADD among seven-year-old children who watch more than five hours of television a day -> correct.This is correct since argument says 85% of 7 year old children watch TV more than 5 hrs daily but does not say how many % of children (7 yrs old) watchingTV more than 5 hrs daily are attcked by the Disease.hence without this Watching TV cannot be the reason using which argument concludes ED as ADD sufferer.
(C) limits the description of the symptoms of ADD to an inability to focus for a prolonged period of time -> irrelevant
(D) fails to consider the possibility that Ed may be among the 15 percent of children who do not watch more than five hours of television a day -> passage clearly states ED watches TV 6 hrs daily.
(E) does not allow for other causes of ADD besides television watching -> this is irrelevant and out of scopeCould you please explain in detailed way instead of just saying IMO B -C or whatever. Thanks