FACT:According to reports provided by the San Tijon Police Department, persons who have attended or graduated from college are generally less likely to commit crimes than people who have never attended college.
CONCLUSION:Clearly, in some way, going to college decreases the probability of a person committing a crime.
If we take a look at the conclusion, it says that college decreased the probability, this doesn't take into consideration that people who enroll are less likely to commit crimes than those who don't.
The conclusion drawn by the argument above depends on which of the following assumptions?
The point I made before it's the assumption we are looking for. We know how thing are "at the end" (end of college) but we don't know how they were at the beginning.
If college decreased the probability, than (at the beginning) it must have been at the same level for all.
(D)Persons who attended college and those who did not were equally predisposed to commit crimes.Here it is: IMO D.
Hope it's clear, let me know how my explanation is