Which of the Following Is the Definition of "Descriptive Statistics

Which of the following is the definition of "descriptive statistics"?

A) averages that are calculated by adding up a set of quantities and multiplying the sum by the total number of quantities in the set
B) statistical procedures that organize and summarize research data
C) statistical tests that assess how likely it is that a study's results occurred merely by chance
D) statistical procedures that allow researchers to draw inferences about how statistically meaningful a study's results are