What two ingredients does the Alton Brown's Sugar Cookie recipe have that the Best Soft and Chewey Sugar Cookie recipe does not?

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The answer is d, michaelangelo

Artists usually use musical imagery to make their compositions more unique and alive. imagery in music used to "show" music. because of that listeners feel what happens. they see music like complete composition. they hear sounds, they feel movement, they see a picture. it makes music deep. that's why  musical imagery is very important and is used by artists so frequently.