and 5 p.m.:

The correct crontab entry to execute the script chklog three times per month between 3 p.m. and 5
p.m.:

A.
* 3,4,5 1 * * chklog

B.
3 3,4,5 1 * * chklog

C.
3 15,16,17 * * * chklog

D.
0 15,16,17 1 * * chklog

E.
* 15,16,17 1 * * chklog