Which of the Following Is a Property of the Standard $\infty$

Multiple Choice

Which of the following is a property of the standard deviation?

A) The standard deviation varies between - $\infty$ and + .
B) The standard deviation is used to describe qualitative variables.
C) Multiplying each score times the same constant will change the standard deviation by that constant.
D) Adding the same constant to each score will change the standard deviation by that constant.