Roy services (Oil Change) vehicles in his garage. His lubricants cost him $40 per vehicle. His wages are $120 per hour. He spends 20 minutes per vehicle. His garage rent is $600 per month. He charges $140 to service each vehicle. How many cars does he need to service to achieve Break Even Point?

Select one:

a. 20

b. 100

c. 200

d. 10