Critical Reasoning

Even though only 5 percent of people living in Hutorsville own guns, the Hutorsville Police Department reported that 25 percent of those arrested for robberies in Hutorsville had guns. Clearly, a person who has a gun is more likely to commit robbery regularly than a person who does not have a gun.

The conclusion drawn above depends on which of the following assumptions?
(A)People who have guns are more likely to rob someone rather than to murder.
(B)People who were arrested for robbery were more likely to commit robberies regularly than people who were not arrested.
(C)People who have guns are less likely to be arrested while committing a robbery.
(D)Many people who were arrested for robbery have been arrested before.
(E)reports in other towns are very different from the report of the Hutorsville Police Department.

Hi Hemu!
My attempt towards answering your question goes as follows-

The first statement that only 5 % of people own guns is not of much significance here. So lets keep it aside.
For the second premise, let us assume that there were 100 arrests for robbery. 25 convicts had guns.
Now using the above fact, the author concludes that a person who has a gun 'Clearly' is more likely to commit robbery REGULARY. Now the words 'Clearly' and 'Regularly' are a catch here. The author tends to assume that the convicts having guns were among the convicts who were arrested before.

So now hitting the options, A,C and E can be easily eliminated.
Between 'B' and 'D', I will chose 'D' as this option says-many people who were arrested have been arrested before.
In option B, It talks about a possibility and hence cannot be used as a definite conclusion.