Answer: A. If a person is 25 years old or older, then the person does not pay an additional car rental fee.
Explanation:
The sentence is saying that anybody aged 25 years or older, does not need to pay an additional car rental fee.
Option A supports this.
Option B is essentially saying that everyone does not need to pay an additional car rental fee regardless of their age so is wrong.
Option C is wrong because it there may be exemptions for people below the age of 25 when it comes to paying the rental fee so this is wrong as well.
