To increase the acceleration of the bowling ball, the bowler should consider throwing the ball with more force. According to Newton's second law of motion, acceleration is directly proportional to the net force acting on an object and inversely proportional to its mass (a = F/m). Therefore, increasing the force applied to the ball (by throwing it harder) while keeping mass constant will result in greater acceleration.
Choosing a ball with less mass would also increase acceleration; however, it may not be practical for the bowler's purpose.
So, among the options provided, the best response is: The bowler should choose a ball with less mass or throw the ball with more force.