What units are used to express force?

a. Kilograms

b. Meters

c. Newtons

d. Ms2

Newtons are used so the answer is C but if you want to be really technical with it you can look at the units that make up a Newton and those units are mass and acceleration or Kilograms and M/s^2, however, C would be the only answer that has both these in it, so C is the one