What is the most appropriate controlling idea in the following topic sentence? “Additionally, advertising adds to the ______ among the young. Already under lots of pressure, the young are being told all kinds of problems they are to have if they don’t use certain products or services. You are going to lose your attraction to your husband if you do not use our perfume; you are going to lose our health if you do not take our calcium tablets three times a day. What a bunch of lies! Indeed, it is widely agreed that many so called ‘diseases’ are created by advertisers—they try to find some problems with us at first and then offer the solution with their products. It is nothing more than a tricky business strategy”.