Match Each of the Following Scenarios with the Type of Reinforcement

Match each of the following scenarios with the type of reinforcement it most clearly illustrates.
-punishment

A) Not enough customers are enrolling in your department store's rewards program, so you offer a monthly $50 bonus to the employee who signs up the most customers.
B) To encourage your employees to sign up customers in the department store rewards program, you announce that whoever signs up the most customers this month will be exempt from cleaning duties for a week.
C) Gary signed up a grand total of 0 customers in the department store's reward program last month.He clearly isn't trying at all, so you threaten to fire him if he doesn't sign up at least one customer on his next shift.
D) Your efforts to enroll customers in your department store's rewards program are so successful that the store actually starts losing money on it.You withdraw all of the incentives you've been using to encourage your employees to enroll more customers in the program.