'Yo Tummy' began its business by offering the classic combo of hamburgers and fries. But over time, their customers wanted healthier foods, so 'Yo Tummy' responded and began offering healthy alternatives such as salads, fruits, wraps and oatmeal. If 'Yo Tummy' hadn't responded, they may have lost customers that wanted to eat healthier foods. The above case highlights one of the points related to the importance of business environment and its understanding by managers. Identify it.