c) symbolics.com

The first internet domain name registered in America was symbolics.com, registered on March 15, 1985, by Symbolics, a Massachusetts computer manufacturer. This milestone in internet history marked the beginning of the domain naming system that has become integral to the functioning of the internet. The registration of symbolics.com paved the way for the creation of the vast digital landscape we know today, where domain names serve as a crucial part of online identity and communication.