It's pronounced "ensemble" by the way. And, one way that a pianist would have a role would be by being in the background as an example and playing his part. He's going to play what he needs to play. The question does seem a little to vague, but truly, I would say simply, that the person who is playing it, just plays his part as they all make music sound good.
The answer is A you wouldn't know the answer because you have not read the story
The style of<span> painting, sculpture and decorative </span>arts<span> identified with the </span>Renaissance <span>emerged </span>in<span> Italy </span>in<span> the late 14th century; it reached its zenith </span>in<span> the late 15th and early 16th centuries, </span>in<span> the work </span>of<span> Italian masters such as Leonardo da Vinci, Michelangelo and Raphael.</span>
He studied architecture,mechanics, cosmology, anatomy and geology
