C? I believe this is the correct answer
Uhhh I dont know, I kinda suck at essays yk be honest
Answers:
1) The car, which took Miah months of saving money to buy, is parked in the garage.
2)The bicycle that Kameron has had since he was ten years old is still in great shape.
4) Sierra met the boy whose parents had recently opened the restaurant doors across the street.
Upper right corner ,I guesss