TOEFL Listening: ETS-TOEFL听力机经 - 8E9417E8KZF95L92P$

Why does the professor mention black clothing? A. To illustrate a trend away from open displays of material wealth B. To point out the realistic depiction of clothing in Renaissance paintings C. To show how master artists influenced fashion trends in the fifteenth century D. To emphasize social differences between master painters and their assistants