Which of the following statements best describes the difference between
hydrogen fuel cells and hydrogen fusion?
A. The energy for a fuel cell reaction follows the equation:
E = mc2
The energy for a fusion reaction does not.
B. More energy is produced per reaction in a fusion reaction than in a
fuel cell.
C. Fusion reactions produce more energy because they use more
hydrogen than fuel cells do.
D. The energy produced from a single atom of hydrogen in a fuel cell
is the same as the energy produced from a single atom of
hydrogen in a fusion reaction.

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