A student is writing a research report about hammerhead sharks for his science class. The student wants to revise the draft to include the most significant, concrete evidence to develop his report. Read the draft of the report and answer the question.

Question

Hammerhead sharks are unique, and it is their uniqueness that has fortified their survival. They are similar to many other species of sharks because of their coloring, but their heads are different. Hammerhead sharks have extremely wide–set eyes and a broad head. Having a head like this makes them sharper hunters because their field of vision is much bigger than a traditional shark's. Their head also scares off many potential predators because it is so unusual. With few predators and the ability to birth 20–40 pups each time they reproduce, hammerhead sharks are steady in population.
Hammerheads are frightening to look at because of their heads and their sharp teeth. Their size is also notable. They scare humans more often than some other kinds of sharks because it is known that they prefer to swim in warm, temperate waters close to coastlines. While they may look scary, most hammerheads are totally harmless to humans and actually swim much too deep down to be attracted to humans as prey. Hammerheads prefer fish, stingrays, other sharks, and squid for their meals.

The underlined sentences need revising to provide more concrete details. Which two sentences are the best choices to replace the underlined sentences?
A.
Many people are afraid of hammerheads because of their size.

B.
Like many other types of sharks, hammerheads come in regular colors.

C.
Hammerheads are really big compared to other sharks too, and that can be truly frightening to humans.

D.
Similar to many other types of sharks, hammerheads are dark green or brown in color with white bellies.

E.
Because they can be up to 20 feet long and weigh between 500–1000 pounds, hammerheads are intimidating to humans.

Answer 1

The best choices to replace the underlined sentences for more concrete details are:

D. Similar to many other types of sharks, hammerheads are dark green or brown in color with white bellies.

E. Because they can be up to 20 feet long and weigh between 500–1000 pounds, hammerheads are intimidating to humans.

These options provide specific information about hammerhead sharks' colors and sizes, enhancing the draft with concrete evidence.