Identify the type of question you would ask to discover the following information. The year in which Picasso was born
a. how
b. who
c. where
d. When
e. What

Pls hurry im being timed :(

Which environmental change allowed people to travel by land between asia and north america a.human apaption to arctic environments b.the introduction to horses to north america c.the formation of ice sheets on land d.a rise in ocean temperatures