Consider the following equation:
\( 2\mathrm{SO_2}(g) + \mathrm{O_2}(g) \rightleftharpoons 2\mathrm{SO_3}(g), \ \Delta H = -190 \, \mathrm{kJ} \)
The number of factors which will increase the yield of \( \mathrm{SO_3} \) at equilibrium from the following is _____.
A. Increasing temperature
B. Increasing pressure
C. Adding more \( \mathrm{SO_2} \)
D. Adding more \( \mathrm{O_2} \)
E. Addition of catalyst
