In the reaction, `4NH_(3)(g)+5O_(2)(g) rarr 4NO(g)+6H_(2)O(g)`, when 1 mole of ammonia and 1 mole of `O_(2)` are made to react to completion
A. 1.0 mole of `H_(2)O` is produced
B. all the oxygen is consumed
C. 1.5 mole of `NO` is formed
D. all ammonia is consumed