Which of these excerpts from margaret frink's memoir most clearly shows that her story is told in the first person?

a. the carsons had two wagons, with four horses to each, having bought more horses at ragtown, after losing their

b. away from the river, the soil is hard and dry, void of any vegetation except sage-brush, which is worthless for any purpose but fuel.

c. much of the slpe between the mountains and the river is covered with sage-brush.

whenever we come to grass that can be mowed, mr. frink has the men cut a good supply of it with the

Read the excerpt from the code book. without much hope of a theoretical breakthrough, cryptanalysts have been forced to look for a technological innovation. if there is no obvious way to reduce the number of steps required for factoring, then cryptanalysts need a technology that will perform these steps more quickly. silicon chips will continue to get faster as the years pass, doubling in speed roughly every eighteen months, but this is not enough to make a real impact on the speed of factoring—cryptanalysts require a technology that is billions of times faster than current computers. consequently, cryptanalysts are looking toward a radically new form of computer, the quantum computer. if scientists could build a quantum computer, it would be able to perform calculations with such enormous speed that it would make a modern supercomputer look like a broken abacus. the author’s purpose in this paragraph is to convince the readers to pursue a career in analysis. explain the need for faster technology in cryptanalysis. entertain with interesting stories about supercomputers. argue for more money to develop a quantum computer.