Complete the sentence:
She baked the ________ to perfection.

"Soft, fluffy biscuits" is correct because a comma separates the two coordinating adjectives.
"Soft fluffy biscuits" is incorrect. This is because a comma is needed to separate the coordinating adjectives.
"Soft fluffy, biscuits" is incorrect. This is because the comma between the adjective fluffy and the noun biscuits should be eliminated.
"Soft and fluffy biscuits" is incorrect. This is because it is not necessary to add and between the two adjectives. A comma should be in its place.