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Verbal·Standard English Conventions·Boundaries

hard

Jeffery Renard Allen’s short essay on “backwall,” a word referring to the cliff at the head of a glacier-carved valley, is included in the collection Home Ground: A Guide to the American Landscape. The book wasn’t written solely by        other authors, such as Carolyn Servid and Barry Lopez, also contributed essays.

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

A

Allen; however,

B

Allen, however;

C

Allen: however,

D

Allen, however,