Which two actions should a consultant take before importing a large volume of data into an NPSP org?

Which two actions should a consultant take before importing a large volume of data into an NPSP org?
A . Check the code coverage of the target org
B . Disable certain Apex classes manually in production
C . Check if the data is clean, structured, and in its final format
D . Disable certain Apex classes using TDTM

Answer: C,D