Apex domains cannot have CNAME records.
Question and response
Question
dig options-it.com. NS
Answer
options-it.com. 4 NS a8-65.akam.net.
options-it.com. 4 NS a3-64.akam.net.
options-it.com. 4 NS a10-67.akam.net.
options-it.com. 4 NS a14-64.akam.net.
options-it.com. 4 NS a7-66.akam.net.
options-it.com. 4 NS a1-137.akam.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0