Your Text Mentions Several Examples of "Real World," or Authentic

Your text mentions several examples of "real world," or authentic, math activities for young children. Which of the following would NOT be considered an example of real life math?

A) Timing the amount of time it takes two snowballs to melt in the classroom.
B) Counting change from a charity fundraiser.
C) Playing with number flashcards.
D) Setting a table to make sure that there are an equal number of napkins and plates.