The answer is A; Diffracted
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Diffraction happens when light encounters an obstacle on its path and it bends around the corners of it or through tiny cracks.
In a cloud the light travels through it but when it hits with ice particles or water it diffracted through their edges causing what is called optical atmospheric diffraction.
I hope this answer helps you.
massxgravity x heght=weightxheight= pe
d) physical means can be used to separate the components of air.