In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?
A . Without additional configuration, no users may have user specific crontabs.
B . Without additional configuration, all users may have user specific crontabs.
C . The cron daemon will refuse to start and report missing files in the system’s logfile.
D . When a user creates a user specific crontab the system administrator must approve it explicitly.
Answer: A