Gwen, an English major in college, took a job at an advertising agency after she graduated. She knows the meanings and derivations, as well as the moods and feelings, of words and the images and associations they create in a reader's mind. Her job is to select, shape and sculpt the words in an advertisement. Gwen works as a(n)

A. art director
B. creative director
C. copywriter
D. wordsmith
E. proofreader