Forwhich SAP S/4HANA deployment options would you always choose a greenfield approach? Note: There are 2 correct answers to this question.

Forwhich SAP S/4HANA deployment options would you always choose a greenfield approach? Note: There are 2 correct answers to this question.
A . SAP S/4HANA Cloud, extended edition
B . SAP S/4HANA On Premise
C . SAP S/4HANA Cloud
D . SAP S/4HANA Cloud, private edition

Answer: A,C