The manager's assumption is that the employee work only for their own benefits and they need immediate punishment for poor work, intermediation, and minute-level supervision. This proves that he uses Theory X.
The upper management, on the other hand, is trying to initiate consultation with the employees before bringing out any improvement plan in the business process. This type of management style implicitly assumes that the employees are motivated and self-directed. This is Theory Y.
So, the first option should be correct.
Equity theory is something not contextual here. Equity theory works on the reduction of perceived inequality in the input and output of the employees as a means of motivation.