3. Why might the white population of Massachusetts have been increasingly willing to entertain arguments such as those contained in
the petition?

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.  

d. william mckinley's southern upbringing him win.

this is a good question! i'll do some research and come back when i have the answer!

the correct answer is a