default or selected kernelversion does not have config value CONFIG_ARPD.
Result is shown for kernelversion 6.2.5

IP: ARP daemon support

configname: CONFIG_ARPD

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>IP: ARP daemon support
In linux kernel since version 2.6.12  
The kernel maintains an internal cache which maps IP addresses to
hardware addresses on the local network, so that Ethernet/Token Ring/
etc. frames are sent to the proper address on the physical networking
layer. Normally, kernel uses the ARP protocol to resolve these

Saying Y here adds support to have an user space daemon to do this
resolution instead. This is useful for implementing an alternate
address resolution protocol (e.g. NHRP on mGRE tunnels) and also for
testing purposes.

If unsure, say N.