"Contrast" means to be different, or to differ. The answer is D. However, because "however" is used when you start to talk about something different.
I hope this helps! :D
If this were a question on my test, I'd probably go for tolerant or sentimental. I'd probably go for sentimental, because if the sentence had a more tolerant tone, it would say something like "My car isn't the greatest, but I can live with it".
