Here, we need to find a logical reason for the assumptions made in this argument.
Premise: the amount of violence in films has increased significantly over the past 10 years.
Option A - Correct
This is a logical reason to why Congress should pass a law limiting movie violence so as to prevent the society from becoming more violent.
Option B - Incorrect
This option claims that crime rate has risen, but it gives no reason to WHY this crime rate has risen in the past 5 years.
Option C - Incorrect
This expression is outside the context of the argument in question. The argument is not concerned about how the movie industry will react to such legislation.
Option D - Incorrect
There's no evidence or indication in the argument to back-up the statement "every film made in the last 10 years includes violent scenes", we only know for sure that the amount of violence in films has increased noticeably over the past 10 years
Option E - Incorrect
The main concern of the argument is on violence scenes and not GMAT scenes.