Selena wrote this topic sentence in her analysis of Enrique's Journey. The writer shows why it is dangerous for migrants to sleep during their trip north. Which piece of evidence from the biography best supports Selena’s analysis? "Enrique's head throbs. The sun reflects off the metal. It stings his eyes, and his skin tingles. It drains the little energy he has left." "For a while, he stands on a narrow ledge at the end of a fuel tanker. It is just inches above the wheels. He cannot let himself fall asleep; one good shake of the train, and he would tumble off." "The MS control the tops of freight trains operating north of the Rio Suchiate, where many migrants going to the United States begin their trek through Mexico. They rob migrants riding the trains." "Fear, he realizes, helps to keep him awake, so he decides to induce it. He climbs to the top of the tank car and takes a running leap. With arms spread, as if he were flying, he jumps to one swaying boxcar, then to another."