You are presented with the question "What's one common unit for measuring the length of an object?" and the following answer choices: 
- structure and function
 - Time and energy
 - Grams per gallon
 - Length
 - Bundles of fibers
 - Inches or fractions of inches.
 - Pounds
 - deoxyribonucleic acid

Now knowing that aruler is used for measuring the length of an object and rulers are divided into inches and fractions of inches, choose the best answer.


 

      Inches or fractions of inches.   