According to the Definition Offered in the Textbook, Which of the Following

According to the definition offered in the textbook, which of the following would NOT be a good example of culture?

A) a child mimics her friend by sticking her tongue out when she doesn't like her food
B) a child learns how to brush her teeth from her father
C) a child improves on her brother's game by using three marbles instead of two
D) a child creates a piece of art she has never seen before while, at the same time, listening to her sister sing songs
E) a child learns from her teacher how to sit down nicely in her chair during lunch