Which two things should the consultant check?

A nonprofit organization is using NPSP Data Importer for Contacts. The consultant has noticed that even though the mappings are correct, some of the Account records are not automatically being created.

Which two things should the consultant check?
A . If all the email addresses are properly formatted
B. If all records have a phone number
C. If the required fields are included in the import
D. If there are required fields on the Account

Answer: C,D