Read "Spanish Dancer" and answer the question.
Spanish Dancer
by Rainer Maria Rilke
     As on all its sides a kitchen-match darts white
     flickering tongues before it bursts into flame: 
     with the audience around her, quickened, hot, 
     her dance begins to flicker in the dark room. 
5   And all at once it is completely fire. 
     One upward glance and she ignites her hair
     and, whirling faster and faster, fans her dress
     into passionate flames, till it becomes a furnace
     from which, like startled rattlesnakes, the long
10  naked arms uncoil, aroused and clicking. 
     And then: as if the fire were too tight
     around her body, she takes and flings it out
     haughtily, with an imperious gesture, 
     and watches: it lies raging on the floor, 
15  still blazing up, and the flames refuse to die -
     Till, moving with total confidence and a sweet
     exultant smile, she looks up finally
     and stamps it out with powerful small feet.
What is the meaning of imperious as it is used in Line 13?
A.) commanding
B.) assaultive
C.) compulsory
D.) insulting