Answer:
The Silk Road was a vast trade network connecting Eurasia and North Africa via land and sea route
I'm thinking the answer to this would be B.
It makes the most sense. Definitely not C or D.
Answer:
The cause of the Boston Tea Party was the colonists didn't want taxed tea. The effect was the Sons of Liberty dressed up as Mohawk Indians and dumped all the tea of three ships when they brought a new supply to the colonists.