Which of the Following Examples Best Describes Big Data

Which of the following examples best describes big data?

A) Facebook processes one thousand picture uploads per day.
B) Five hundred cell-phone owners around the world generate vast amounts of data by calling, texting, tweeting and browsing the web on a daily basis.
C) The amount of data created every 48 hours is equivalent to the entire amount of data created from the dawn of civilization.
D) 9 percent of the data in the world today has been created in the last two years.