To play music on all staves at the same time
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.)
I believe the answer is an instrument
Diego rivera him ge did the painting
There is so many I can name but I’m to lazy to type
