The rules of statistics say that it is possible for all the air in a room to move to one corner. or this is extremely unlikely.
The conjunction but sets the reader up for an opposite or contrast: it is possible . . . (but) unlikely. (Choices C and D make no sense.)
940 MCQ for effective preparation of the test of Redundancy of English Grammar section.
Read the MCQ statement: The rules of statistics say that it is possible for all the air in a room to move to one corner. or this is extremely unlikely., keenly and apply the method you have learn through the video lessons for Redundancy to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 306-4585.