Final answer:
The most appropriate phrasing for 'Sara bought a car' is 'The most expensive.'
Explanation:
The most expensive is the correct representation for the sentence 'Sara bought a car'.
When indicating possession in English, a prepositional phrase following the noun can show ownership. For example, 'the cat of my friend from school'.
In terms of quantity, characteristics of an item like a car play a role. For instance, a car with more features could be considered as containing 'more car'.
Learn more about English possession and quantity here:
https://brainly.com/question/17766408
