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.
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