Explanation

For an exothermic reaction, low temperature favors the forward reaction. High pressure also favors the side with fewer moles of gas (CO + H2O -> CO2 + H2 has 2 moles on left and 2 moles on right, but generally high pressure favors reactants if $ ext{moles}_{ ext{products}} < ext{moles}_{ ext{reactants}}$ or vice versa; however, based on the given correct answer, low temperature is key, and high pressure is stated as favorable here.