Which Statement Is TRUE with Regards to Network Goods

Multiple Choice

Which statement is TRUE with regards to network goods?

A) The market leader for a network good is always the best quality product available.
B) Changes in market share for network goods are usually very slow.
C) It is possible that a market leader for a network good can quickly descend into a vicious cycle.
D) Market leaders for network goods usually remain in their top spots for at least a decade.