During the Summer, Alex Runs a Lawn-Mowing Service, and Lawn-Mowing

During the summer, Alex runs a lawn-mowing service, and lawn-mowing is a perfectly competitive industry.In the short run, Alex will shut down his lawn-mowing service rather than continue mowing grass if:
A.the total revenues can't cover the total fixed costs.
B.the total revenues can't cover the total variable costs.
C.the total revenues can't cover the total cost.
D.the price exceeds the average total cost.