PLEASE HELP BEING TIMED-What is the relationship between the development of trade and the development of technology? A. The developments of trade and technology are not related.
B. A region can only trade if it has modern transportation technology.
C. Regions that want to develop trade avoid the development of technology.
D. The development of technology can encourage the advancement of trade.
Please select the best answer from the choices provided.

In wegener’s evidence for continental drift, continents were proposed to fit together, such as the east coast of south america with the west coast of europe. east coast of africa. west coast of greenland. lower west coast of africa.

The great scientist alfred wegener proposed that continents have moved, while other scientists such as t.c.chamberlin argued against wegener. wegener's ideas eventually won, and are now widely accepted, because: a) wegener's ideas were more beautiful, and so were favored by the intellectual elite.b) wegener's ideas did a better job of predicting the results of new observations and experiments.c) wegener's ideas appealed to dead white european males, whereas chamberlin's didn't.d) wegener's ideas appalled dead white european males, and we all know that in this politically correct era,dead white european males cannot get a fair shake.e) wegener won the nobel prize.

Which barrier to economic development is shown in the following examples?