E. digby baltzell's study, puritan boston and quaker philadelphia, showed that a very high number of "top achievers" listed in the dictionary of american biography came from: answer the south. pennsylvania. massachusetts. philadelphia.

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 and a is the correct anwsers

explanation: