Which of the following sentences uses a signal phrase to introduce content from an outside source?

A. Schools like Harvard conduct studies about butterflies every year.

B. "The migration of the monarch butterfly is a sight to celebrate" (Professor X).

C. According to a study by Harvard University, the migration of the monarch butterfly is a sight to celebrate.

D. Monarch butterflies go through a migration process each year, according to recent studies.



Answer :

Final answer:

Using signal phrases is crucial in academic writing to introduce information from external sources effectively.


Explanation:

According to a study by Harvard University, the migration of the monarch butterfly is a sight to celebrate.


Signal phrases are important to introduce information from an outside source in academic writing.


Varying the signal phrases can help maintain reader interest and clarity in the text.


Learn more about Signal phrases in academic writing here:

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