The "joining threshold" is
A) the total number of people who can join a specific coalition.
B) the level where a minimum number of people have joined a coalition and others begin to join because they recognize that their current friends and associates are already members.
C) the minimum number of people required for a coalition to be successful.
D) the level at which a new member must "pay" in order to join the coalition.
E) None of the above defines the joining threshold.
Answer: B