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, what is used to measure the base unit of the metric system which is the meter?
Pick your answer from:
 (A). solid, liquid, gas.
 (B). A laser.
 (C). A measuring cup.
 (D). bottom of feet.
 (E). A tape measure.
 (F). focusing a lens.
 (G). Time and energy.
 (H). A level.
(E).