Suppose You Have Worked at a Local Sandwich Shop for Six

Suppose you have worked at a local sandwich shop for six months and now you plan to ask your manager for a raise. How can you convince your manager that you are worth more money than you are currently being paid?

A) by threatening to quit if he refuses to give you a raise
B) by demonstrating to your manager the marginal revenue product your employment contributes to the sandwich shop
C) by explaining to him how difficult it is for you to save enough money to go to university
D) by convincing him that you are a dedicated worker and ready to take on more responsibilities at the shop