Answer:
Step-by-step explanation:
The sentence is too long and too varied to accommodate a plain comma so that lets out B and D
The third one is subtly incorrect. A semicolon usually separates two equal kinds of sentence structure.
I like the first one using a full colon. What follows the colon explains and expands the thought before the colon. A colon's normal use is to separate the main thought from a list, but it can be used this way as well.