The relationship between charges can be described by saying,

a.) charges do not interact.
b.) negative charges attract.
c.) neutral charges repel.
d.) opposite charges attract.

The correct answer for above statement is:

d.) opposite charges attract.

Explanation:

Electric charges are of two generic types: positive and negative. Two objects that have an abundance of one type of charge exercise a force of repellency on each other when comparatively close together. Two objects that have excess opposite charges, one positively charged and the other negatively charged, bring each other when approximately near.

given data:

determine the horse power (h.p) = ?

force applied to move the box(f) = 10 pounds,

box lifted from a distance         (d) = 3 feet

time taken to lift                         (t) = 10 sec,

the horse power is defined as amount of work required to move a load. the horse power is equal to 550 foot-pound per second

                  1 h.p   = 550 foot-pound/second

it can also be defined as the the load that need to be move a body for certain distance in a certain amount of time.

mathematically,

                      h.p = (force × distance)/ time

                            = (10 × 3)/ 10

                            = 30/10

                            = 3 foot -pound/sec

hence, the horse power is needed to move the box is 3 foot-pound/second

important note: 1 h.p = 550 foot-pound/second = 746 watts

i guess it’s a and b