The HP 10000 G2 series racks for EVA4400/6400/8400 configurations are RoHS complaint. What
does this

A.
Restriction of hazardous substances, a directive of the European Union

B.
Rotational online hot-swap storage, a standard of the International Electrotechnical Commission
(IEC)

C.
Region of high security, a United States government regulation

D.
Rack open hardware support, a specification of the Open Software Foundation