it is when we learn in home instead at school
It spread through trainers and new innovations. Most popularly, the invention of the printing press.
Answer:
None.
Explanation:
None of the options given in the question are an example of an extraordinary item, because extraordinary items are events or transactions of an unusual or highly abnormal nature. This concept of being something "extraordinary" is closely related to the social object of the entity to which an item is related, which brings a particularity to this item that is its flexibility of its application.