At Present, a "Digital Divide" Exists, Meaning That

At present, a "digital divide" exists, meaning that:

A) the technology needed for research lags behind the needs of researchers.
B) Internet users tend to be older, less educated, and less affluent than nonusers.
C) Internet users are still not representative of the general U.S. population.
D) researchers conducting sex research on the Internet find it difficult to recruit hidden populations of geographically isolated participants.