1. I'm not sure which of these but I think either A or C
2. A
3. D?
The most often used application of the term virtuosity applies to music - a virtuosic piece, a virtuosic musician etc. Thus the answer to this is b. Virtuosity means extreme technical proficiency in an area of music (though it can be applied to other things as well to show mastery of a skill - a virtuosic painter etc.)
Charlie Parker was the composer who refused to play facing the audience to avoid other musicians figuring out his signature motives and styles.
Answer: keep an open mind
Explanation: