Question 3 is based on the news report you have just heard.

    （3）Big fast food chains in New York City have started to obey a first of its kind rule, requiring them to post calorie counts right on the menu. Cathy Nurses is with the New York City department of health, we wanted to give people an opportunity to actually see the calories before they purchased the food and make a decision and inform decision. That if they want to make their healthier choice, if they want to eat fewer calories they can. And we expect this will have a huge impact on obesity. And of course, if it has an impact on obesity, it will have an impact on diabetes and heart disease and high blood pressure. The new rules will introduce as a part of anti-obesity campaign. That also includes a recent citywide ban and artificial trans-fats in restaurant food. The menu roll only applies to restaurants that serve standardized potion sizes and have fifty more locations nationwide.（4） Starting last Saturday, chains big enough to fall under the rule will face penalties about 2000 dollars for not showing calorie information in a prominent spot on their menus preferably next to the price.

3. What are big fast food chains in New York City required to do according to the new rule?

解析:本道题比较简单，属于原文重现，原文中提到 post calorie counts right on the menu，对应了选项中的B) Put calorie information on the menu，将卡路里信息写在菜单上。故答案为B。