Oracle bones found in china indicate which development made by bronze age civilizations?

a.
a written system of language

b.
animal domestication practices

c.
advanced artwork techniques

d.
the foundations of daoism

The picture below shows president richard nixon and the first lady standing before the great wall of china in 1972. they are smiling - as are the chinese with them. when this picture was shown on american television, americans were aware that it was a historic moment. what are two reasons why this moment was important for both china and the united states?