Apex domains cannot have CNAME records.
Question and response
Question
dig anoodschool.com. NS
Answer
anoodschool.com. 2 NS ns2-71.azure-dns.net.
anoodschool.com. 2 NS ns4-71.azure-dns.info.
anoodschool.com. 2 NS ns1-71.azure-dns.com.
anoodschool.com. 2 NS ns3-71.azure-dns.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0