Good flexibility assessments need to be easy to replicate so that
a.
the assessments are used often
b.
the assessments become standardized
c.
the assessment results remain similar between people
d.
the assessment data is easily compared between people

The answer is D, not B.

well when looking at this if you think about it   negativley and positivley   react with each other and when the first layer gets full they add layers it starts with 2 on the first layer and it constantly goes on until the official number is there