In 1866, the U.S.Congress defined the U.S.yard as exactly 3600/3937 international meter.This was done primarily because:
A)length can be measured more accurately in meters than in yards
B)the meter is more stable than the yard
C)this definition relates the common U.S.length units to a more widely used system
D)there are more wavelengths in a yard than in a meter
E)the members of this Congress were exceptionally intelligent

Question

Quizplus · Accepted Answer

The U.S. Congress defined the U.S. yard as exactly 3600/3937 international meter primarily to relate the common U.S. length units to a more widely used system, which is the metric system that uses the meter as the base unit of length. This was part of the United States' effort to adopt the metric system, which is used by most countries in the world.