Which two Statements are true concerning the configuration and use of cron and anacron?

Which two Statements are true concerning the configuration and use of cron and anacron?

A.
Anacron jobs are used to make sure cron jobs run if the system had been down when
they were meant to run.

B.
All crontabs are held in the /etc/cron.d directory.

C.
Cron jobs may run as frequently as once a minute.

D.
Anacron jobs may run as frequently as once a minute.

E.
The crond daemon looks for jobs only in /etc/crontab.