Apex domains cannot have CNAME records.
Question and response
Question
dig larnthropick.com. NS
Answer
larnthropick.com. 5 NS ns2.larnthropick.com.
larnthropick.com. 5 NS ns1.larnthropick.com.
Authority
The response has no authority records.
Additional
ns1.larnthropick.com. 5 A 216.245.220.210
ns2.larnthropick.com. 5 A 216.245.220.222
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0