Which choice completes the text so that it conforms to the convention…

Source Texts

Text

Gretchen Legler's short essay on "sound," a word referring to a large inlet or channel of a sea or ocean, is included in the collection Home Ground: A Guide to the American Landscape. The book wasn't written solely by other authors, such as Stephen Graham Jones and Barry Lopez, also contributed essays.

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

Legler, however,

Legler however,

Legler. However,

Legler, however;