B.) Had left
The bus had left by the I arrive at the station
<span>c)t is possible that the piñata originated somewhere other than China.
The sentence says that many people believe it originated in China, but clearly it is not a known fact, where the pinata originated. This means that since there is doubt, the pinata might have originated somewhere other than China.</span>
Answer: A compund subject!
Explanation: Sorry if I answered late :((