Which of the following will shift the position of equilibrium to the right in the Haber process?

     ${{\text{N}}_{\text{2}}}{\text{(g)}} + {\text{3}}{{\text{H}}_{\text{2}}}{\text{(g)}} \rightleftharpoons {\text{2N}}{{\text{H}}_{\text{3}}}{\text{(g)}}$     $\Delta {H^\Theta } = {\text{92.6 kJ}}$

I. Decreasing the concentration of ${\text{N}}{{\text{H}}_{\text{3}}}{\text{(g)}}$

II. Decreasing the temperature

III. Increasing the pressure

A. I and II only

B. I and III only

C. II and III only

D. I, II and III

D