Answer:
I'm going to need more context, what is the question?
Answer:
C) Incidentally
Explanation:
Personally I don't like any of these answer choices. However, this one makes the most sense in this context. The others would need a much different set-up earlier on in the passage. "Incidentally" does not require such a set up, which is why it is the only one that fits.
Change the comma after “parts” to a colon
it's (A) , i think it's the best description for this context .