The main difference in the phenomenon of interference and diffraction is that

• A

   diffraction is due to interaction of light from the same wavefront whereas interference is the interaction of waves from two isolated sources.

• B

   diffraction is due to interaction of li6bt from wavefront, whereas the interference is the interaction to two waves derived from the same source. 

• C

   diffraction is due to interaction of waves derived from the same source, whereas the interference is the bending of light from the same wavefront.

• D

  diffraction is caused by reflected waves from a source whereas interference caused is due to refraction of waves from a surface.