Formal.
As far as I know, there is no such thing as either standard or practiced diction. Informal is the way you communicate with your friends, for instance, which is not how you would write a thesis paper, legal document, etc.
Answer: Meaning a certain type of car model, make, year, and quantity wether 1 or more Cars.
Explanation:
Close narrators tend to be more developed.
Every narrative has a different approach, and when a narrator develops closeness with his/her audience it can be assumed that it is a more developed narrator. This is because creating a relationship with your audience takes time, hardwork and trust. And all of these things come with real effort.
The answer is A, because numbers with two parts should be hyphenated
the author jay bennett used flashback when she kept referencing the car accident with jamie