New Critical Reasoning question bank by carcass

Hey carcass!

Could you elaborate on question 6 please? Although I realize (after reading the explanation) that the problem in this question is the scope shift from # of entries to 'Regularity' of entries (how consecutively you enter - as in an evenly spaced set :D ), i don't seem to understand why answer D is correct because it simply restates the conclusion. How can a conclusion be an argument's assumption?

Thanks in advance!

Max

A recent report determined that although only eight percent of drivers entering Banff National Park possessed yearly entry permits, as opposed to day passes, these drivers represented fifteen percent of all vehicles entering the Park. Clearly, drivers who possess yearly entry permits are more likely to enter Banff National Park on a regular basis than are drivers who do not.

The conclusion drawn above depends on which of the following assumptions?

A) The number of entries to Banff National Park by drivers with yearly entry permits does not exceed the number of yearly entry permits issued by the Park.

B) Drivers who possess yearly entry permits to Banff National Park are more likely to stay longer in the Park than drivers who do not.

C) All drivers with yearly entry permits to Banff National Park entered the Park at least once during the period of the report.

D) Drivers possessing yearly entry permits to Banff National Park are more likely to enter the Park regularly than are drivers who do not.

E) Drivers who entered Banff National Park with yearly permits during the period of the report were representative of the types of drivers who have entered other national parks with similar yearly permits.