What does it mean when Mr. Salvatori is described as dancing

smoothly and gliding "like ice cubes

across the stage"?

A. Mr. Salvatori moves

gracefully and

with ease.

B. Mr. Salvatori is somewhat unfriendly

and serious.

C. Mr. Salvatori can sing and skate at the

same time.

D. Mr. Salvatori is on a hard and slippery

surface.

A. Mr. Salvatori moves  gracefully and  with ease.

Explanation:

The expression shows the ease with which Mr. Salvatori masters the stage and performs his dancing smoothly on it. Just as ice cubes are soft and smooth and can glide through a smooth surface, so does Mr. Salvatori smoothly perform his dancing.

This term connotes the idea of grace and ease.  

glamis thou art, and cawdor; and shalt be what thou art promis'd; yet do i fear thy nature; it is too full o' the milk of human kindness to catch the nearest way: thou wouldst be great; art not without ambition; but without the illness should attend it. what thou wouldst highly, that wouldst thou holily; wouldst not play false, and yet wouldst wrongly win: thou'dst have, great glamis, that which cries, "thus thou must do, if thou have it: and that which rather thou dost fear to do than wishest should be undone." hie thee hither, that i may pour my spirits in thine ear; and chastise with the valor of my tongue all that impedes thee from the golden round, which fate and metaphysical aid doth seem to have thee crown'd withal.  

he lacks ambition.  

he is hesitant.  

he lacks courage.  

he has moral scruples.

so is this a rhetorical question?