Which three detail hierarchies can you achieve by creating more view links?

A view link defines a basic master-detail relationship between two view object. Which three detail
hierarchies can you achieve by creating more view links?

A.
multilevel master-detail-detail

B.
multilevel detail-master-master

C.
detail with multiple masters

D.
master with multiple (peer) details

Explanation:
http://docs.oracle.com/cd/E12839_01/web.1111/b31974/bcquerying.htm#CEGJCAHC
(note, topic 5.6.3)