[单选题]
One reason a photon c 5xso4 .hayp1pould not create an oc)fj )1;qj wkjrso//odd number of electrons and positrons is that such a process fr)js jqo/kwc; /)1jowould
A. not conserve charge.
B. not conserve energy.
C. require photon energies that are not attainable.
D. result in the creation of mass.
