You want to install windows 2000 professional on a system. which two commands can be used to run the setup of Windows 2000 professional. （）

A.Answer file.
B.Startup file.
C.Unattended configuration file.
D.Network file.

A.Interactive and Network mode.
B.Attended and unattended mode.
C.Diskless and floppy mode.
D.User level and administrator level mode.

A. 16 MB
B. 32 MB
C. 64 MB
D. 128 MB