Question #N294

The author of the novel, which is set in a rural community in the United States, writes about the difficulties of small-town life and the challenges of navigating complex social dynamics.  But while the novel explores themes of isolation and community, the author also offers an optimistic view of the potential for change. 

Which choice best combines the sentences at the underlined portion to maintain the meaning and style of the passage?
A. But, while the novel explores themes of isolation and community, the author also offers an optimistic view of the potential for change.
B. The novel, while exploring themes of isolation and community, also offers an optimistic view of the potential for change.
C. Yet, the novel explores themes of isolation and community; the author also offers an optimistic view of the potential for change.
D. However, while the novel explores themes of isolation and community, the author also offers an optimistic view of the potential for change.