Answer: I wanna say its c
Although im not too sure
Explanation:
Because due to all the artist clearly only put one person into this painting.
A flat sign is your answer
It looks like it just needs to be cleaned unless you’re referring to the paneling in which maybe in the past it was broken and needed to get welded back together.
Answer:
Two tones that sound the same but are notated (spelled) differently in the equal temperament tuning method used on keyboard instruments are called enharmonic.