Read the excerpt from "Healthy Eating."

But just a few easy changes in our diet will make a world of difference in our health. The key is planning and making informed decisions.

"People get stuck with the same five recipes. Or they feel kids are picky," said Erin Corrigan, the nutrition manager at Miami Children's Hospital. "My suggestion is you dedicate half an hour, once a week, to looking over ads at your favorite store, create a meal plan, make a list and go to the store and dedicate only going once a week, unless it's a real emergency."

How could the author strengthen her argument in this part of the article?

She could provide evidence that clearly shows how planning meals improves health.
She could include a quotation from a credible expert about how to plan healthy meals.
She could address the counterclaim that picky eaters make meal planning difficult.
She could include statistics that tell what percentage of people regularly plan meals.