Measurements Taken with Ruler a and Ruler B Differ Slightly

Multiple Choice

Measurements taken with ruler A and ruler B differ slightly. In what way do the measurements differ?

A) A measurement taken with ruler A has two more significant digits than ruler B
B) A measurement taken with ruler B has two more significant digits than ruler A
C) A measurement taken with ruler A has one more significant digit than ruler B
D) A measurement taken with ruler B has one more significant digit than ruler A
E) Measurements taken with ruler A and B are the same.