Tobin learns that using aluminum cans and plastic bottles can damage the environment. he begins writing the proposal below to suggest a way to reduce their impact.

people should be worried about the environmental effects of using cans and bottles. people use about 200 billion aluminum cans and 500 billion plastic bottles each year. to meet this demand, many new aluminum cans and plastic bottles are made each year. making new aluminum cans requires minerals and making new plastic bottles requires fossil fuels. getting these materials from the earth can damage the environment and cause pollution.

recycling cans and bottles decreases the amount of new materials that are needed to make more of them. about 68% of aluminum cans are recycled, but only about 7% of plastic bottles are recycled. many of these plastic bottles end up in landfills or in the ocean.

which argument would best complete tobin's proposal?
a.
encouraging people to use more aluminum is one of the best ways to protect the ocean.
b.
encouraging people to recycle plastic bottles is the best way to protect the environment.
c.
people should make sure to dispose of their plastic bottles in landfills and not in the ocean.
d.
people can reduce their effect on the environment by recycling more of their aluminum and plastic.