B.) Therefore
These provide transitions in sentences, particularly sentences with 2 clauses.
The purpose of the Silk Road was to transport goods.
Answer:
Modern authors use myths and traditional stories as a basis for stories because the cultural and moral messages have stood the test of time. (does this answer your question?)
The word with a negative connotation is discouraging.
When someone is discouraged, they are dispirited, disheartened, and with a lack of enthusiasm; this has a negative implication.
All other options have positive connotations, except maybe bulb, which is pretty neutral.
I hope this helps you!