Maya has earned high grades in honors algebra and is writing a letter to her principal asking to take other honors classes. Read her thesis statement, then answer the question. Based on my prior grades, participating in honors classes would help me. Which is the best revision of Maya's thesis statement

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were 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.