In the provided writing sample, what three points are being used to compare or contrast the two main ideas?

Although vegetarian eating habits have been around just as long as omnivorous eating habits, more people seem to be adopting an animal-free diet recently than ever before. With the increase in obesity, health problems and global warming, the vegetarian trend is becoming a more acceptable, mainstream, and appealing way of eating. So which diet is better for your health? Just like every choice we make as humans, there are pros and cons to both meat-full and meat-free diets.
Select one:
• a. health benefits, balanced meals, obesity
• b, health benefits, obesity, environmental factors
• c. obesity, balanced meals, environmental factors
• d. obesity, preserving resources, environmental factors