Answer:
Which of the following is true of online "member communities"?
a. More than 90% of the online population visits such communities.
b. Such sites are only accessible from desktop computers.
c. Membership in member communities is growing faster than e-mail.
d. Membership in member communities is declining.
Step-by-step explanation:
It is true that more than 90% of the online population visits online 'member communities', since they have become a necessity in today's business world. People can interact with others and share their experiences with each other.