Which statement about Explicit Hierarchical Locking (EHL) for DB2 pureScale is true?

A.
EHL is enabled by default in DB2 10.5 pureScale environments.

B.
There are three EHL states available: SHARED, DIRECT_ACCESS and NONSHARED.

C.
Only regular tables, temporary tables, and non-partitioned indexes can take advantage of EHL.

D.
EHL is designed to improve DB2 pureScale performance by avoiding CF communications for
tables that are accessed from only one member.