Which of the following is an example of nuclear fusion?

• A
  $_{1}H^{2} + _{1}H^{2} \to _{2}He^{4} + \text{energy}$
• B
  $_{92}U^{235} + _{0}n^{1} \to _{56}Ba^{141} + _{36}Kr^{92} + 3_{0}n^{1} + \text{energy}$
• C
  $_{13}Al^{27} + _{1}H^{1} \to _{12}Mg^{24} + _{2}He^{4}$
• D
  None of these