Here is my take.
• The majority of federal legislators would vote for a bill that prohibits the sale of video games to minors.
- The conclusion is a CAUSE AND EFFECT conclusion which states that
IF game sales to minors are banned, kids are less likely to develop the carpel tunnel. A is one of the generic tricks on these type of cause-and-effect conclusion question. A tries to mislead you by making you think the
IF condition is likely to happen. However, even if the law isn't passed, the conclusion that - if it were implemented, it would work - is still valid.
• Not all adolescents who play video games on a regular basis suffer from carpal tunnel syndrome.
We don't need all regular kids gamers to develop carpal tunnel to establish the argument that gaming could lead to a degree of carpel tunnel and that if such gaming is limited, less carpel tunnel could result.
• Playing video games is the only way an adolescent can develop carpal tunnel syndrome.
Not necessary. Kids could develop carpal tunnel from eating ice-cream or staring at the sun for all we care. It still doesn't affect the argument that since kids develop carpal tunnel from games, by preventing gaming, carpal tunnel could be limited from this specific activity. So even if kids could develop carpal tunnel from 1 million activities, by limiting one of such activities, you could still reduce carpal tunnel by a bit...
• Most parents would refuse to purchase video games for their adolescent children.
(Correct)If kids aren't allowed to buy video games, but their parents could buy it for them, then the end result is the same ... kids are still time playing games as before... and the intended effect of passing the law - limiting kids from playing games - is negated as parents are helping their kids to by-pass the ban.
• The regular playing of video games by adolescents does not produce such beneficial effects as better hand-eye
coordination and improved reaction time.
The kids could develop carpal tunnel and at the same time, all become Einsteiens for all we care. It still doesn't affect the argument that since games lead to carpal tunnel, limiting gaming could reduce carpal tunnel. We don't care about other effects of gaming...
Hope that helps