The correct answer is (B), and the negation method helps confirm why this is the assumption the argument depends on. Let's walk through it:
The Argument’s Structure
The argument says that developing an all-consuming hobby is not a successful strategy for overcoming adolescent loneliness. It bases this on the possibility that losing interest in the hobby could make the loneliness even worse.
Identifying the AssumptionFor the argument to be valid, it assumes that a "successful strategy" for overcoming loneliness wouldn’t make loneliness worse under any circumstances.
Negating Option (B)
Option (B) states: "No successful strategy for overcoming adolescent loneliness ever intensifies that loneliness."
Negated Form of (B):"A successful strategy for overcoming adolescent loneliness could intensify that loneliness."Applying the Negated Assumption
If (B) is negated, it opens the door to the possibility that even successful strategies might sometimes intensify loneliness. This directly undermines the argument because, if true, then the fact that developing a hobby might increase loneliness when interest wanes does not necessarily make it an unsuccessful strategy. In other words, the argument falls apart because it no longer holds that an all-consuming hobby cannot be a successful strategy simply because it
might increase loneliness.
Why This Confirms (B) as NecessaryThe argument’s reasoning relies on the idea that intensifying loneliness disqualifies a strategy as "successful." Without (B), the argument loses its basis, as it would have to allow that even a strategy that
sometimes worsens loneliness could still be successful.
Thus, using the negation method confirms that (B) is the correct assumption the argument depends on.
noboru
Shy adolescents often devote themselves totally to a hobby to help distract them from the loneliness brought on by their shyness. Sometimes they are able to become friends with others who share their hobby. But if they lose interest in that hobby, their loneliness may be exacerbated. So developing an all-consuming hobby is not a successful strategy for overcoming adolescent loneliness.
Which one of the following assumptions does the argument depend on?
(A) Eventually, shy adolescents are going to want a wider circle of friends than is provided by their hobby.
(B) No successful strategy for overcoming adolescent loneliness ever intensifies that loneliness.
(C) Shy adolescents will lose interest in their hobbies if they do not make friends through their engagement in those hobbies.
(D) Some other strategy for overcoming adolescent loneliness is generally more successful than is developing an all-consuming hobby.
(E) Shy adolescents devote themselves to hobbies mainly because they want to make friends.