Why would a contact fail to enter a Journey Builder interaction? (Choose three.)

Why would a contact fail to enter a Journey Builder interaction? (Choose three.)
A . The interaction has an A/B/n split, and the contact does not meet the criteria.
B . The interaction allows re-entry only after exiting, and the contact already exists.
C . The contact falls below the High Water Mark.
D . The contact did not meet the entry criteria.
E . The entry event was not fired via Automation Studio.

Answer: BCD