Please explain the correct answer in detail with the mathematical steps necessary to find the answer! Thank you.

(Table: Three-Country Oil Production) Refer to the table. Suppose that three countries are engaged in oil production. For simplicity, assume zero costs so that revenue equals prot. Assume that country A cheats on the cartel agreement by producing 200 more barrels than the other two countries. What is the resultant prot earned by each of the other two countries