Arrange the following sentences in logical order.

A. The most widely accepted theory is that about 5000 million years ago swirling clouds of matter began to condense.

B. Such is the theory and nine satellites began orbiting around the sun which are called planets.

C. Through the action of centrifugal force, the heavier molecules were concentrated near the centres of the eddies, and the lighter, gaseous material was thrown out towards the periphery.

D. There is no general agreement about how the planets were formed.