Based on the options for ID stitching and merge method respectively, which type of merge policy is appropriate for this use case?

A marketer wants 10 create a segment that qualities profiles from all datasets that are enabled for profile. The use case for the segment is for activation to advertising destinations.

Based on the options for ID stitching and merge method respectively, which type of merge policy is appropriate for this use case?
A . ID stitching: None
Merge method: Dataset precedence
B . ID stitching: None
Merge method: Timestamp ordered
C . ID stitching: Private graph
Merge method: Dataset precedence
D . ID stitching: Private graph
Merge method: Timestamp ordered

Answer: A