What are three advantages of the package development model? Choose 3 answers

What are three advantages of the package development model? Choose 3 answers
A . Improving team development and collaboration.
B. Eliminating the need of using change set, which should no longer be used as it can get messy working with package development models.
C. Facilitating automated testing and continuous integration.
D. Significantly reducing the need for manually tracking changes.
E. Providing its own source control, so the source can be deployed In any sandbox orgs.

Answer: A,B,C