You are presented with the question "What can a ruler measure the meters of?" and the following answer choices: 
- an imaginary distance
 - a black hole
 - quarks
 - loose soil
 - animals
 - athletes
 - sea urchins
 - an object

Now knowing that aruler is used for measuring the length of an object and length Rope lengths are measured in meters, choose the best answer.


 

        an object 