Considere os vetores u=3i - 4j + 2k, v=2i + 5j0 - 3k e w=4i + 7j + 2k. O vetor 3u + 4v - 2w é   

A) (9,-6,-10)   

B) (2,4,-13)    

C) (-5,6,7)    

D) (4,-12,14)    

E) (9,5,-12)