Mixed `He^(+)` and `O^(2+)` ions (mass of `He^(+)`=4 amu and that of `O^(2+)=16` amu) beam passes a region of constant perpendicular magnetic field. If kinetic energy of all the ions is same then
A. `He^(+)` ions will be deflected more than tose of `O^(2+)`
B. `He^(+)` ions will be deflected less than those of `O^(2+)`
C. All the ions will be deflected equally
D. No ions will be deflected