In online analytical processing systems, ________ provide a way to summarize the data

A prospective seller wanted to give you a listing on a property. In reviewing his papers, you discover that he is buying the property on a conditional/installment contract of sale and that the contract contains no acceleration clause or other provision for limiting a resale or assignment. Your client can:

A: Sell his interest in the property only after paying off the contract; B: Sell or assign his rights but not his original duties unless the contract seller's approval is obtained beforehand; C: Give a warranty deed for the property to a buyer as long as the deed includes the words "subject to the existing contract of sale"; D: Give a grant deed to a buyer provided he takes back a recorded second mortgage to cover payments due on the original contract.

What are the three major sources of information that can help companies evaluate a connector? How can marketers informally evaluate connectors?

What will be an ideal response?