Question

American marine biologist and nature writer Rachel Carson (1907-1964) was a key figure in the 20th century environmental movement. Her 1962 work Silent Spring scrupulously detailed how the pesticide DDT contaminates the food ______ this revelation led to the United States banning the substance a decade later.
Which choice completes the text so that it conforms to the conventions of Standard English?
Choose 1 answer:
Choose 1 answer:
(Choice A) chain;
A
chain;
(Choice B) chain and
B
chain and
(Choice C) chain,
C
chain,
(Choice D) chain
D
chain

Answer 1

The correct choice to complete the text in a way that conforms to the conventions of Standard English is:

(Choice C) chain,

So the full sentence would read: "Her 1962 work Silent Spring scrupulously detailed how the pesticide DDT contaminates the food chain, this revelation led to the United States banning the substance a decade later."

This choice uses a comma to properly connect the two independent clauses.