What is the change in oxidation number of carbon in the following reaction?
$CH_{4(g)} + 4Cl_{2(g)} \rightarrow CCl_{4(l)} + 4HCl_{(g)}$

• A
  $0$ to $-4$
• B
  $+4$ to $+4$
• C
  $0$ to $+4$
• D
  $-4$ to $+4$