Circular motions of charged particles

The above shows the paths of two charged particles \(A\) and \(B\) with the same mass after they enter a uniform magnetic field, where they travel along their respective circular orbits. Both \(A\) and \(B\) enter and exit the magnetic field at right angles at the same time. If the quantity of the electric charge and the kinetic energy of the charged particle \(A\) are \(+q\) and \(E_0,\) respectively, then which of following could be the quantity of the electric charge and the kinetic energy, respectively, of the charged particle \(B?\)

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