An application program APP:DATASPEED.EXE is executed simultaneously by 100 users. All
other things being equal, which command minimizes memory consumption and I/O operations?

A.
INSTALL APP:DATASPEED.EXE/RESIDENT/SHARE

B.
INSTALL APP:DATASPEED.EXE/OPEN/PROTECTED

C.
INSTALL CREATE APP:DATASPEED.EXE/HEAD/SHARE

D.
INSTALL CREATE APP:DATASPEED.EXE/PRIV=PHY_IO