Consider the reaction equilibrium 

$2{\mathrm{SO}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\rightleftharpoons 2{\mathrm{SO}}_3\left(\mathrm{g}\right);{\mathrm{\Delta H}}^{\circ }=-198\mathrm{kJ}.$

On the basis of Le Chatelier's principle, the condition favourable for the forward reaction is :

lowering of temperature as well as pressure

lowering the temperature and increasing the pressure

any value of temperature and pressure

increasing temperature as well as pressure