Which of the following represents the Wurtz-Fittig reaction?

• A
  $C_{6}H_{5}I + 2Na + CH_{3}I \rightarrow C_{6}H_{5}CH_{3} + 2NaI$
• B
  $2C_{6}H_{5}I + 2Na \rightarrow C_{6}H_{5}-C_{6}H_{5} + 2NaI$
• C
  $2CH_{3}CH_{2}I + 2Na \rightarrow CH_{3}CH_{2}CH_{2}CH_{3} + 2NaI$
• D
  $CH_{3}Br + AgF \rightarrow CH_{3}F + AgBr$