Answer:
B. the area bounded by the demand curve for X and the two axes
Explanation:
Exercising doesn't mean you have to spend hours in the gym. Exercises can be done at the comforts of your home too, and there's plenty of exercise available, especially for those who have less time to do so. Just like for example, waiting time. While you are waiting for your clothes in the washing machine to finish, you may use this time to do some basic exercises such as running in place, jumping jacks or carrying weights.
False a business can have lots of opportunities, look at Walgreen's. <span />