C would be the best, because it is the one that starts a discussion about the art and not just the museum. It also does not sound aggressive about liking the art himself. Hope this helps!
I’m not sure what you’re asking here but I would say that “untainted” usually means authentic, not untalented.
Your personality influences everything from the friends you choose to the candidates you vote for in a political election. Yet many people never really spend much time thinking about their personality traits.
Understanding your personality can give you insight into your strengths and weaknesses. It can also help you gain insight into how others see you.
I would definitely say A, as it is a simple sentence and does not require a comma after “is”.