The correct answer is: A. Generic Top-level Domains (gTLD)
A generic top-level domain (gTLD) is a top-level domain (TLD) that is not restricted to a particular country or organization. The gTLDs are managed by the Internet Corporation for Assigned Names and Numbers (ICANN).
The .net TLD was originally intended for use by network-related organizations, but it is now open to any use.
The other options are:
- Sponsored top-level domains (sTLDs) are TLDs that are sponsored by a specific organization or group. For example, the .edu TLD is sponsored by the United States Department of Education.
- Infrastructure top-level domains (iTLDs) are TLDs that are used for specific purposes, such as the .arpa TLD, which is used for Internet infrastructure.
- Test top-level domains (tTLDs) are TLDs that are used for testing new technologies. For example, the .test TLD is used for testing new domain name systems.