Which of the following systems would not respond correctly to an nmap XMAS scan?

Which of the following systems would not respond correctly to an nmap XMAS scan?

A.
Windows 2000 Server running IIS 5

B.
Any Solaris version running SAMBA Server

C.
Any version of IRIX

D.
RedHat Linux 8.0 running Apache Web Server

Explanation:
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