CORRECT TEXT
Configure a task: plan to run echo hello command at 14:23 every day.

A.
# which echo

B.
23 14 * * * /bin/echo hello

C.
# crontab -e

D.
# which echo

Explanation:
# which echo# crontab -e
23 14 * * * /bin/echo hello
# crontab -l (Verify)