Fact 1: Atape measure is used to measure length.

Fact 2: Length The Base unit for length in the metric system is the meter .

Given the two facts above, answer the question "What is used to measure the base unit of the metric system which is the meter?" with the following options: 
- solid, liquid, gas
 - A laser
 - A measuring cup
 - bottom of feet
 - A tape measure
 - focusing a lens
 - Time and energy
 - A level


 

     A tape measure    