Which two should an administrator consider when setting up Salesforce CRM Content? Choose 2 answers.

Which two should an administrator consider when setting up Salesforce CRM Content? Choose 2 answers.
A . An approval process can ensure that all product-related content is reviewed.
B . A validation rule can ensure a description is required for all contributed content.
C . The library type determines the size of files that can be contributed to content.
D . The content type determines which fields appear on the Content Detail page layout.

Answer: B,D