The pth percentile is a value such that approximately
a. p percent of the observations are less than the value and (100 - p) percent are more than this value.
b. p percent of the observations are less than the value and p percent are more than this value.
c. (100 - p) percent of the observations are less than the value and p percent are more than this value.
d. (100 - p) percent of the observations are less than the value and (100 - p) percent are more than this value.