In which of the following reactions will an increase in pressure lead to an increase in the yield of products?

• A
  $H_{2(g)} + I_{2(g)} \rightleftharpoons 2HI_{(g)}$
• B
  $H_2O_{(g)} + CO_{(g)} \rightleftharpoons CO_{2(g)} + H_{2(g)}$
• C
  $H_2O_{(g)} + C_{(s)} \rightleftharpoons CO_{(g)} + H_{2(g)}$
• D
  $CO_{(g)} + 3H_{2(g)} \rightleftharpoons CH_{4(g)} + H_2O_{(g)}$