The energy absorbed by each molecule `(A_2)` of a substance is `4.4 xx 10^-19 J` and bond energy per molecule is `4.0 xx 10^-19 J`. The kinetic energy of the molecule per atom will be.
A. `2.0xx10^(-20) J`
B. `2.2xx10^(-19)J`
C. `2.0xx10^(-19)J`
D. `4.0xx10^(-20)J`