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The right answer is A His confidence is transformed by the crowd’s response.
At the beginnig of the excerpt we have a clear clue that would lead us to the correct answer "... a swell of approval palpable as rain lifted from the center of the crowd and rolled out toward its edges..." meaning that the crew was encouraging him because they liked what they were watching, feeling. This passage describes how the crew reacted and how it gave strenght to him to go on the stage and perfom on it.
The author portrayed Scotty in this excerpt with his confidence is transformed by the crowd’s response.
A Visit from the Goon Squad
This book talks characters connected to Bennie Salazar who was a record company executive, and his assistant, Sasha and taking took paths which intersected each other.
From this part of the excerpt "... a swell of approval palpable as rain lifted from the center of the crowd and rolled out toward its edges..." from A Visit from the Goon Squad ,means there was a form of encouragement from them.
This led to encouragement which transformed his confidence which was why option A was chosen as the most appropriate choice.
Read more about A Visit from the Goon Squad here https://brainly.com/question/1616800