Which of the following best describes the number of galaxies in the universe?

hundreds
thousands
millions
billions

Plz i need someone to write me a narrative from scratch

Although the account is in good standing at this point in time. is this sentence incomplete or complete?

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.