WILL GIVE BRAINLIEST.Read the passage. Seth sat at the piano, and I saw him take a deep breath. Sweat was dripping off of his brow, and his left hand was twitching slightly—the obvious result of nerves. He took another deep breath and slowly, painfully exhaled. Then, he gently placed his hands on the keys and his fingers began to move gracefully up and down the keyboard. What emerged was the most beautiful music I had ever heard. Why is this passage an observation? It tries to reflect the everyday lives of ordinary people. It describes an event the writer has witnessed. It reveals a deep truth about a character. It portrays the physical appearance of a person.