Error Analysis. Here's what I found.
A) A is wrong because it talks about what influenced Television Content. We're not looking for that.
OUTB)B is wrong because it says nothing about different reactions among the communities studied on the basis of TV viewing. In fact, as you'll realize later, you'll know that we cannot compare the two studies because the demographics in terms of TV viewing is different between the groups in the first study and the second, for all their "similarity". The second group has had TV for decades. The first group has only had the TV for a couple of years. You can't rule out the possibility that the second study groups could have also had a similar increase in aggressiveness in the initial stages of their TV viewing experience.
OUTC) C is wrong because it compares long term effects and short term effects. Effects? Yes, aggression is an effect. But the plural effects suggests that there were more than just one effect, and we certainly do not know about the other effects. This is a sort of Trap answer choice you'd be tempted to select out of urgency on Test Day.
OUTD)D, At first glance seems wrong. On Test Day, You're probably Eliminating the wrong choices and more often than not an answer choice like this is the first you'd look at and say "This one's a goner!". But hold on,
Bunuel has explained why this is indeed the right choice on this thread. I'd like to add more to
Bunuel 's reasoning. The mere fact that we're comparing two(actually three) similar, yet different set of communities (different in terms of TV viewing experience) (10 or 20 years of TV >> 2 years of TV) on the basis of research results requires one to read between the lines. It's a possibility that these communities, out of their similarity in all the things you could think of (eg- lifestyle, habits, etc.) with the community in the first study, might have had a similar increase in aggression when TV was first introduced to them.
KEEP
E) The problem with E is that it seems so good and goes so well with the pattern of the passage. A great little trap. The conclusion from the first study gives us an observation about TV in its initial years after being introduced to a community. The second study is 10 or maybe 20 years too late. The aggression probably has already been developed for the researchers to notice. E is a tough trap to avoid because to understand it, you'll have to understand what isn't obvious from the passage.
OUT