Which statement best expresses the central idea of the text? A. The types of food people eat and the way that it is produced has varying costs for the environment, ranging from releasing pollution to wasting resources.
B. People tend to buy food that is low cost for themselves; however, this type of food is usually produced in a way that is costly to the environment.
C. The only way to reduce the emission of greenhouse gases is for the biggest meat eaters to convert to vegetarian or vegan diets.
D. People don’t have to change what they eat to help the environment, just how their food is farmed or raised.