Apex domains cannot have CNAME records.
Question and response
Question
dig garlic.com. NS
Answer
garlic.com. 5 NS ns.garlic.com.
garlic.com. 5 NS ns.vfr.net.
Authority
The response has no authority records.
Additional
ns.vfr.net. 5 A 216.139.32.41
ns.garlic.com. 5 A 216.139.32.33
ns.garlic.com. 5 AAAA 2607:4b00:10:0:216:139:0:95
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0