Answer:
B) Throughout history , Chinese emperors have placed the symbol on clothing , banners , flags , and buildings . Given their long history in China , dragons will probably remain a powerful symbol of Chinese culture.
Explanation:
The statement even says probably which means it is not supported by fact. (I think)
My guess would be d. previously, because it's talking about early cars.
I believe that the answer is B, "to" is the preposition and "car" is the object.