Luther's act of nailing his ninety-five theses to a church door on All Hallows' Eve was
a.
followed by his immediate expulsion from Wittenberg.
b.
a prank.
c.
an act most people in Wittenberg ignored.
d.
an act of religious and political rebellion.
e.
the usual way of announcing a scholarly disputation.

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

b.

jim crow laws were enacted in northern states.

the answer is use of support