A carpenter is making tables (x) and chairs (y). Each table takes 5 hours to make and is sold for $100 and each chair takes 3 hours to make and is sold for $30. His goal each week is to make more than $500 from selling his tables and chairs and work no more than 40 hours. Which combination of tables and chairs would maximize his profit?

Question options:

a/ 8 tables and 0 chairs


b/ 2 tables and 10 chairs


c /4 tables and 3 chairs


d/ 5 tables and 0 chairs