A cat is playing with $2$ balls, a red one and a blue one. The red ball has twice the mass of the blue ball. The cat hits both balls with the same force. The acceleration of the blue ball is

a$.$ the same as the acceleration of the red ball

b$.4$ times the acceleration of the red ball

c$.(1)/(2)$ of the red ball

d$.2$ times the acceleration of the red ball

e$.$ Not enough information to draw any conclusions.