Which is the answer?

The correct answer is Prepositional phrase

Explanation:

A prepositional phrase always begins by a preposition for example, for, under, above, at, beside, etc. and it is followed by a noun that is considered as the object of the preposition. Additionally, prepositional phrases modify or describe a noun, which is usually placed before the prepositional phrase.

In the sentence "The fan above the coffee table has unusual blades" the capitalized section "above the coffee table" is a prepositional phrase because this includes the preposition "above" and the noun "the coffee table"; also, this section acts as a modifier as it describes the noun "the fan" by specifying which fan the speaker is referring to.

one is a red flower, and one is the sky when the sun sets.