Mashaal Masha
A survey was conducted using a sample of history professors selected at random from the California State Universities. The professors surveyed were asked to name the publishers of their current texts. What is the largest population to which the results of the survey can be generalized?
Difficulty: Medium
A: 

All professors in the United States

B: 

All history professors in the United States

C: 

All history professors at all California State Universities

D: 

All professors at all California State Universities

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