A Lithium Nucleus with a Charge of 31

A lithium nucleus with a charge of 31.6 × 10^-19) C and a mass of 71.67 × 10^-27) kg, and an alpha particle with a charge of 21.6 × 10^-19) C and a mass of 41.67 × 10^-27) kg, are at rest. They could be accelerated to the same kinetic energy by

A) accelerating them through the same electrical potential difference.
B) accelerating the alpha particle through V volts and the lithium nucleus through 2V/3 volts.
C) accelerating the alpha particle through V volts and the lithium nucleus through 7V/4 volts.
D) accelerating the alpha particle through V volts and the lithium nucleus through 7V/6 volts.
E) None of these procedures.