You need to ensure that all customizations from the source farm are available in the destination farm

You are moving a customized SharePoint site collection to a new farm. You attach and
mount the source content database in the destination farm. You need to ensure that all
customizations from the source farm are available in the destination farm.
What should you do?

A.
Install all custom applications in the destination farm.

B.
Copy all custom master pages from the source site collection to the Style Library in the
destination site collection.

C.
Copy all SharePoint groups and users from the source farm to the destination farm.

D.
Copy all custom master pages from the source site collection to the master page gallery
in the destination site collection.