What is the scope of the AbapCatalog.Buffering annotation in a Core Data Services (CDS) view?

What is the scope of the AbapCatalog.Buffering annotation in a Core Data Services (CDS) view?
A . The set of key fields specified in the additional annotation AbapCatalog.buffering.numberOfKeyFie
B . The CDS views used in the FROM clause
C . The entire CDS view
D . The elements in the projection list of the CDS view

Answer: C