What is a good way to come up with a topic for a paper?

a. use the ideas of friends and classmates.
b. research a subject that interest you.
c. brainstorm unfamiliar ideas.
d. search for a very specialized topic.

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were a wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.