Fact 1: Aruler is used for measuring the length of an object.

Fact 2: Rulers are divided into inches and fractions of inches.

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


 

      Inches or fractions of inches.   