In a manufacturing company, a specific group of workers are responsible for assembling a certain component of an item. The floor manager was not satisfied with the rate at which they were assembling the component, so he decided to offer an incentive. The table shows the number of components assembled per hour before and after the incentive was offered for five workers. The 95% confidence interval for the difference in means (after - before) is

A) -0.4846 to 4.8846

B) 0.9569 to 3.4431

C) 0.7680 to 3.6320

D) 0.5811 to 3.8189