Why Would an Increase in Capital Resources Lead to an Increase

Why would an increase in capital resources lead to an increase in worker productivity?

A) More capital means that fewer workers are needed,increasing output.
B) More capital leads to a decrease in wages,leading employees to work harder.
C) More capital means that workers have better tools and equipment and can produce more.
D) More capital means that the owners of a company reap all of the benefits of labor.
E) More capital causes decreasing returns to scale.