You have a shell script to automate backups that asks what directory to send the backup to$.$ What is the problem when scheduling it as a cron job?

Question $55$Answer

a$.$

Cron jobs cannot be interactive

b$.$

Cron jobs cannot use variables

c$.$

The user should be logged in for the script to properly ask for the input

d$.$

The cron job must be included in root's crontab for the script to properly ask for the input