Spender is the archaeologist for the fourth expedition. He reveres Mars and quickly leaves the crew to explore the planet by himself. He learns to read Martian. Finally, he decides that he should kill off the crew in an effort to preserve Mars.
D, because they use satire to expose the moronic corruption of a single person or society using humor, irony or exaggeration to pull in readers who would probably never read it if they hadn't used satire. <span />
