All Other Things Being Equal,how Will the Value of the Sample

Multiple Choice

All other things being equal,how will the value of the sample variance be different from the population variance?

A) The sample variance will always be a smaller value than the population variance.
B) The sample variance will always be a larger value than the population variance.
C) The sample variance,but not the population variance,can be zero.
D) The sample variance,but not the population variance,can be negative.