Which of the following sentences contains the correct usage for virtuosity?

a.

The virtuosity of the animals was expressed in their gait.

b.

The musicians showed extreme virtuosity in their range.

c.

The virtuosity of the figures in the painting gave it a heavenly appearance.

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.)