question: both versions include a leather headrest. the base is made of satin brushed stainless steel.
Capitalize this past sentence correctly.
A: Both versions include a leather headrest. The base is made of satin brushed stainless steel.

question: when it's deleted by symantec netbackup, the infected dll file would be removed too.
Capitalize this past sentence correctly.
A: When it's deleted by Symantec NetBackup, the infected DLL file would be removed too.

question: campylobacter is frequently found in bathing water, where as campylobacter is only sporadic found in drinking water in denmark.
Capitalize this past sentence correctly.
A: Campylobacter is frequently found in bathing water, where as Campylobacter is only sporadic found in drinking water in Denmark.