Conditions Used to Be Such That the First Entrant into a Foreign

Conditions used to be such that the first entrant into a foreign market could count on being the leader for years, but in today's marketplace, the competitive edge is not as great because:

A) of competing technology and a frequent lack of intellectual property rights protection.
B) competing firms were there first.
C) globalization and the Internet do not allow there to be a "first firm".
D) most countries do not allow startup firms to enter into the market.