Apex domains cannot have CNAME records.
Question and response
Question
dig sbcatholiccemeteries.org. NS
Answer
sbcatholiccemeteries.org. 5 NS ns-1031.awsdns-00.org.
sbcatholiccemeteries.org. 5 NS ns-795.awsdns-35.net.
sbcatholiccemeteries.org. 5 NS ns-670.awsdns-19.net.
sbcatholiccemeteries.org. 5 NS ns-857.awsdns-43.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0