What is the prepositional phrase Tina and Jen were among finalists?

The prepositional phrase in the sentence "Tina and Jen were among the finalists" is "among the finalists".

Here's why:

* Preposition: "Among" is the preposition.

* Object of the Preposition: "the finalists" is the object of the preposition.

* Function: The entire phrase acts as an adverbial phrase, modifying the verb "were". It tells us where Tina and Jen were located in relation to the other finalists.