Which of the following is not true of the above examples of Neolithic ceramics?
a.
Patterns were engraved into each ceramic piece, and then white chalk was rubbed into the engravings so that the engravings stood out against the black background.
b.
These are examples of European pottery vessels, created between 3000-2000 BCE.
c.
These vessels were found in Spain, and are believed to have been created by the Spanish peoples around 3000 BCE.
d.
The technology to create ceramic vessels was understood long before any were actually created in Europe.