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In the reaction \( { }_{1}^{2} \mathrm{H}+{ }_{1}^{3} \mathrm{H} \rightarrow{ }_{2}^{4} \mathrm{He}+{ }_{0}^{1} n \), if the binding energies of \( { }_{1}^{2} \mathrm{H},{ }_{1}^{3} \mathrm{H} \) and \( { }_{2}^{4} \mathrm{He} \) are
\( \mathrm{P} \) respectively \( a, b \) and \( c \) (in \( \mathrm{MeV} \) ), then the energy (in

W \( \mathrm{MeV} \) ) released in this reaction is
(a) \( a+b+c \)
(b) \( a+b-c \)
(c) \( c-a-b \)
(d) \( c+a-b \)
(2005)
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