What is the difference between dropping a partition and deleting records?

A.
Dropping a partition creates delete vectors; deleting records does not create delete vectors.

B.
Dropping a partition can be rolled back; deleting records cannot be rolled back.

C.
Dropping a partition creates new files; deleting records does not create new files.

D.
Dropping a partition recovers space immediately; deleting records does not recover space
immediately.

Explanation: