What Is a Danger Associated with Using the Internet for Homework

What is a danger associated with using the Internet for homework or research?

A) Students who use Internet sources are likely to be tempted to plagiarize.
B) Because the Internet is convenient, students may spend too much time using it as a resource and not spend enough time on more difficult research methods.
C) Internet sources are written at too low of a level to be useful for university-level research.
D) Internet resources are unstable and impermanent, so students are unable to provide verification of their research efforts.