Answer:
The correct answer is letter "B": technological paradigm shift.
Explanation:
A paradigm shift takes place when the is a change in the methods and practices that were traditionally used and were conceived as main references due to the introduction of new ideas. Technological paradigm shifts are those caused by the creation of new technology that abruptly alters the market. For instance, the introduction of e-mails replaced faxes and courier services for mailing.