Which of the following is a valid monitor stanza for inputs.

[monitor:///var/log/*.log] index = linux sourcetype = access_combined host = 489307057

[monitor:\\\var\log\httpd-[0-9].log] index = linux sourcetype = access_combined host = 489307057

[monitor:///var/log/httpd-[0-9].log] index = linux sourcetype = access_combined host = 489307057

[monitor:\\\var\log\*.log] index = linux sourcetype = access_combined host = 489307057