The following excerpt is from an argument project. Choose the sentence that expresses a debatable claim. Because whole grains are an essential part of a healthy diet, we should eat them. Things have changed since the 1990s. Back then, people were warned to avoid "carbs" if they wanted to maintain a healthy weight. Today, most nutritionists believe that whole, unrefined grains are one of the keys to a balanced and healthy diet.

Things have changed since the 1990s. Back then, people were warned to avoid "carbs" if they wanted to maintain a healthy weight. This is a common statemen we hear. Nowadays many people are still suggesting avoiding carbs for a healthy diet.

Explanation:

Carbs are a very important part of our diets because they are the main source of energy for the brain. To avoid carbs from a diet would be not only unhealthy but it would be a risk for our body, such as for our kidneys. Carbs should be in every balanced and healthy diet, but as the other sentence states, they should be whole and unrefined grains.

an expression designed to call something to mind without mentioning it explicitly; an indirect or passing reference.

c) problem and solution