Which object in EDA indicate a student's major?

Which object in EDA indicate a student’s major?

A university’s IT department and its consultant are integrating data from the Student Information System (SIS) to the Education Data Architecture (EDA). Advisors need to see a student’s primary course of study.

Which object in EDA indicate a student’s major?
A . Education History
B . Relationship
C . Program Plan Requirement
D . Program Enrollment

Answer: D