Which scenario pertains to equity rather than efficiency?

The Red Sox signs a star player for $$35$ million a year, which is more than $10$ times the average salary of the rest of the team.

Due to a lack of customers, Jamie's Pizza reduces the number of pepperoni slides on each pizza.

Mike's Auto Shop invests in a new hydraulic lift that makes it easier to change oil and rotate tires.

Howard's Realty offers his sales staff a bonus incentive if the annual sales goal is reached.