What are the three considerations that the architect should recommend for Change Set deployment? Choose 3 answers

What are the three considerations that the architect should recommend for Change Set deployment? Choose 3 answers
A . Change Sets cannot be automated..
B. Change Sets cannot be validated before deployment
C. Change Sets cannot be used for orgs affiliated with same production org.
D. Change Sets cannot be rolled back.
E. Change Sets cannot be reused between Production Salesforce orgs.

Answer: A,D,E