Which statement best describes how work and power are different?

a. To find work we need to know force and distance; to find power we need to know force and velocity. 
b. To find work we need to know energy and time; to find power we need to know energy and distance.
 c. To find work we need to know velocity and distance; to find power we need to know distance and time. 
d. To find work we need to know distance and force; to find power we need to know energy and velocity.