Which of the Following Statements Concerning Particles and Waves Is/are

Which of the following statements concerning particles and waves is/are correct?

A) Uncharged particles travel in straight lines until they collide with something.
B) When two particles meet in space,they never produce an interference pattern.
C) When a large number of small particles exchange a small amount of energy,the exchange cannot be distinguished from that of a wave.
D) When two waves of equal intensity and originating from coherent sources meet in space,the resulting wave can have an intensity anywhere from zero to four times the intensity of each of the original waves.
E) All of the above are correct.