What is the correct way to handle this?

LenoxSoft has purchased a list of prospects and wants to send emails to those prospects in Pardot immediately.

What is the correct way to handle this?
A . Recommend that it is okay to send to purchased lists in Pardot.
B. Have LenoxSoft split their purchased list into multiple sends so as to not affect the IP’s reputation.
C. Run a permissions pass on the purchased lists to get permission quickly before sending them a marketing email.
D. Recommend that they must receive explicit permission from those prospects on the purchased list before they can upload that prospect list into Pardot.

Answer: D