The Internet Activities Board (IAB) considers which of the following
behaviors relative to the Internet as unethical?

A.
Negligence in the conduct of Internet experiments

B.
Recordkeeping in which an individual cannot find out what
information concerning that individual is in the record

C.
Improper dissemination and use of identifiable personal data

D.
Recordkeeping whose very existence is secret

Explanation:
The IAB document, Ethics and the Internet (RFC 1087) listed behaviors
as unethical that:
Seek to gain unauthorized access to the resources of the Internet
Destroy the integrity of computer-based information
Disrupt the intended use of the Internet
Waste resources such as people, capacity and computers through
such actions
Compromise the privacy of users

Involve negligence in the conduct of Internetwide experiments
The other answers are taken from the Code of Fair Information
Practices of the U.S. Department of Health, Education of Welfare.