I think it is D Sppaulding always late to work
The Three Witches<span> first appear in Act 1.1 where they agree to meet later with</span>Macbeth<span>. In 1.3, they greet </span>Macbeth<span> with a prophecy that he shall be king, and his companion, Banquo, with a prophecy that he shall generate a line of kings.</span>
If you mean dispersion it mean splitting light into 7 parts.
They are used to create artificial rainbow effects
