In a media selection problem, instead of having an objective of maximizing profit or minimizing cost, generally the objective is to maximize the ________

When you use a credit card at a store, the store is generally charged a fee ranging from 1.5% to 5%. What is this fee called?

A) Merchant discount fee B) Merchant back-end charge C) Merchant rate D) Discount rate

What is a semantic web?

What will be an ideal response?