identify the correctly punctuated sentence in each group.

a: the detective said time is of the essence.
b: the detective said, "time is of the essence".
c: the detective said "time is of the essence".
d: the detective said "time is of the essence."

why must a research paper always include a works cited page?

a: to convince readers that common knowledge is valid
b: to give proper credit to original source material
c: to explain in detail why quotations are used in the paper
d: to list all authors' names correcty