The correct sentence is A) My car is old and gets bad gas mileage. Having bad gas mileage is an ongoing thing that will never change unless you get a different car, so none of the other choices make sense.
Imagine you are reading and you find a confusing part or word. If you don’t ask the question to find out you will never know what that meant same goes for scientists
Answer:
B is your answer :)
Explanation:
Both parts of that sentence could stand alone as there own sentence.