Atape measure is used to measure length, and length The Base unit for length in the metric system is the meter . Given these facts, what is used to measure the base unit of the metric system which is the meter among 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    