While revising, the error that should be correct is the run-on sentence.
This is interesting. It's a split between C and D for this, as it covers both almost equally. However, I would go with C, seeing as it all falls under the umbrella of "cultural significance", even when talking about what purpose the drum is being changed for.
Answer:
D
Explanation:
it explains in great detail what the propose of dopamine's is and what they do. so this would be the most logical. at least this is what I think. I'm no teacher lol. good luck
Answer:
The novel book has been read by you yesterday in the evening