Final answer:
The response to the dialogue from A Chorus Line, specifically Zach Line's response to Bobby's statement, is not provided in the information given.
Step-by-step explanation:
In the dialogue from A Chorus Line that you mentioned, the response from Zach Line after Bobby says, 'Well, I'll just do something else' is not explicitly stated in the provided information. The dialogue you referenced is part of a larger scene and it does not include Zach Line's specific response. Therefore, without further information, it is not possible to determine Zach Line's response to Bobby's statement.