Which of these best describes how the two authors support the claim that the chemicals in the fluid used in hydraulic fracturing are harmful to people?
A The author of "The Benefits of Shale Gas" says chemicals rarely contaminate water, while
the author of "Stop the Fracking!" says that the chemicals almost always contaminate
water.
B The author of "The Benefits of Shale Gas" says the fluid contains only a small amount of
harmful chemicals, while the author of "Stop the Fracking!" says the fluid consists mostly
of harmful chemicals
C The author of "The Benefits of Shale Gas" says that gas companies do not drill near
drinking-water sources, while the author of "Stop the Fracking!" says that gas companies
almost always drill near drinking-water sources.
D The author of "The Benefits of Shale Gas" says that the water is still safe to drink, while
the author of "Stop the Fracking!" says the water is not safe to drink.

Read the passage. the dust bowl during the 1930s, extreme drought and high winds made life incredibly difficult in the great plains region of the united states. in many areas, rainfall was forty percent less than normal. the soil became extremely dry, and when strong winds blew, they created tremendous dust storms. these so-called “black blizzards” were so thick that they made daylight seem like dusk. during this terrible period, the great plains region of the united states was named the “dust bowl.” over the next few years, the drought continued, and the winds created more dust storms. in some places, the drought and high winds lasted for eight years. many people wondered if the black blizzards would ever end. which statement about this paragraph’s main idea is true? this paragraph’s main idea is stated in the topic sentence. there are not enough details to support the main idea. this paragraph’s main idea is implied. this paragraph does not express a main idea.