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.

3one of the biggest impacts a building has on earth is the energy it uses. currently, most of the world’s energy comes from burning fossil fuels. these fuels are dirty and when they are burned they pollute the air and water. one way to burn fewer fossil fuels is to reduce the amount of electricity a building has to use. passive solar heating, which uses heat from the sun, reduces the amount of fossil fuel used to heat buildings. passive solar heating requires a south-facing wall made of glass. when sunlight shines through the wall, it is collected and used to warm the building. another way green buildings reduce their electricity use is to install other energy sources. for example, some green buildings use panels that turn energy from the sun into useable electricity. which is the best summary of paragraph 3? a) fossil fuels are dirty and pollute the air and water. most of the world's energy comes from these fuels. b) the biggest problem of buildings is that they use fuel that is dirty for heating. they need to do something to be more energy efficient. c) panels that turn energy from the sun into electricity and passive solar heating can stop the burning of fossil fuels which pollute air and water. d) since fossil fuels are dirty and pollute the air and water, other technologies that pollute less and produce energy have been developed like solar energy and green buildings.