Which two limitations of Metadata API should be considered when using Metadata API-based Deployments?

Universal Containers (UC) works with different partners and has few admin resources that take care of the day-to-day deployment tasks. As a result, UC would like to find a way to automate the deployments using Metadata API.

Which two limitations of Metadata API should be considered when using Metadata API-based Deployments? Choose 2 answers
A . Deploy up to 10,000 files, but retrieve more than 10,000 files.
B. Maximum size of deployed .zip file is 400MB.
C. Maximum Size of deployed .zip file is 39MB.
D. Deploy and retrieve up to 10,000 files at once.

Answer: C,D