Energy of radiation and bond dissociation

2009 AIPMT 1 question

1. 1 Structure of Atom
   The energy absorbed by each molecule ($A_2$) of a substance is $4.4\times10^{-19}$ J and bond energy per molecule is $4.0\times10^{-19}$ J. The kinetic energy of the molecule per atom will be
   A $4.0\times10^{-20}$ J B $2.0\times10^{-20}$ J C $2.2\times10^{-19}$ J D $4\times10^{-19}$ J
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