This Reaction Is the Basis for the Haber-Bosch Process for the Manufacture

This reaction is the basis for the Haber-Bosch process for the manufacture of ammonia: To maximize the yield of ammonia, the pressure ____ and the temperature____.

A) should be kept high by compressing the mixture; should be kept low
B) should be kept high by compressing the mixture; should be kept high
C) should be kept high by adding an inert gas; should be kept low
D) should be kept high by adding an inert gas; should be kept high
E) should be kept low; should be kept low