A Linux Administrator Needs to Schedule a Cron Job to Run

Multiple Choice

A Linux administrator needs to schedule a cron job to run at 1:15 p.m. every Friday to report the amount of free disk space on the system and to send the output to a file named "freespace". Which of the following would meet this requirement?

A) 13 15 * * 5 df > /freespace
B) 15 13 * * 5 df > /freespace
C) 15 1 * * 6 df > /freespace
D) 15 13 6 * * df > /freespace