The answer to whose work has a formal an emotional richness that was meant to counter minimalist male art is from Miriam Schapiro in 1973. For Miriam, the personal appearance is really important. She usually does an art regarding her being a feminist. She was also known as the person who uses material that are related to women.
The answer is D. You know that thing that goes Do Re Mi Fa So La Te Do? There’s a good chance you sang it in your head. It’s a scale :)
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.