Answer:
Ace Airline class size will increase as more trainees would be willing to work with Ace Airlines.
Step-by-step explanation:
Ace airlines is paying trainees $15,000 per month after they complete their training. There was a complain by trainees that they are not paid for the training and the training expense is born by the trainees themselves. Ace decides to pay the trainees for the training sessions as well and this will attract more trainees to work for Ace.