In Microsoft Dynamics CRM, you create a custom Event entity tor storing events and a custom Event Type entity for storing possible Event Types for events. You want to store one or more of these Event Types in an Event. What should you create?
A. a native N:N relationship between Event and Event Type
B. a Lookup attribute in the Event entity
C. a Multiple Lines of Text attribute in the Event entity
D. an Option Set attribute in the Event entity