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Boundaries SAT question

Reading and Writing · Standard English Conventions · Easy · Answer it here, explanation included.

Psychophysicist Howard Moskowitz was hired by a soda company to determine how much artificial sweetener blank After conducting consumer taste tests, he found that no such ideal existed: participants expressed a wide range of preferences for different blends of sweetener, carbonization, and flavoring.

Which choice completes the text so that it conforms to the conventions of Standard English?

ExplanationShow

Choice D is the best answer. This sentence is a statement: “Moskowitz was hired by a soda company to determine how much artificial sweetener most people prefer in a diet drink.” So a period is the most appropriate punctuation mark.  

Choice A is incorrect. This doesn’t complete the text in a way that conforms to the conventions of Standard English. This sentence is not a question—it’s a statement. So a question mark is not the appropriate punctuation. Choice B is incorrect. This doesn’t complete the text in a way that conforms to the conventions of Standard English. We already have the verbs “was hired…to determine” in this sentence. The verb “do” is not needed and results in a confusing, ungrammatical sentence. Choice C is incorrect. This doesn’t complete the text in a way that conforms to the conventions of Standard English. This sentence is not a question—it’s a statement. So a question mark is not the appropriate punctuation. 

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