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) iPods.
B) A child learns how to tie her shoes from her mother.
C) A child figures out how to create a hammer by tying a rock to the end of a stick.
D) A child given a new puzzle she has never seen before discovers a novel solution by herself.
E) A child learns to raise her hand in class to get the teacher's attention.