Which of the following is true of communication infrastructures as a part of international commerce?
1) The television was the first medium of communication to be invented.
2) Businesses that retain their old practices in the face of new technology tend to flourish.
3) The Internet and the mobile phone have not had as great an effect on commerce as the telegraph.
4) Improvements in communication have been slow to influence the expansion of trade.
5) Each new communications technology has spawned new business models.