Read the passage. isaac forgot to fill up his car with gas. he had to reschedule his appointment. his wife left work early to take him to a gas station. the car was stalled on a busy road. which of the following represents the correct cause-and-effect relationship?

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.