Which of the Following Is Not One of the Four

Which of the following is not one of the four key points raised by economists and policymakers who are skeptical that large technology firms like Google, Facebook, and Amazon should be broken up or subjected to stringent new regulations?

A) The markets these firms compete in are smaller than is sometimes realized.
B) New firms have the ability to enter these markets and compte with these firms.
C) Consumers have benefited from the services these firms offer, and those benefits might be reduced if the firms were broken up.
D) Congress can address concerns about privacy separately from antitrust issues.