QUESTIONS 1–3 ARE BASED ON THE FOLLOWING PASSAGE.C. PART 1

3. Which of the following parts, if added betweendecade, a growing number of racers have beenParts 9 and 10 of the third paragraph, would beadopted to live out retirement as household pets,most consistent with the writer’s purpose, tone,once their racing career is over.and intended audience?(3) Many people hesitate to adopt a retireda.Former racing dogs make up approximatelyracing greyhound because they think only very old0.36% of all dogs owned as domestic pets indogs are available. (4) People also worry that thethe United States.greyhound will be more nervous and active thanb.Despite the fact that greyhounds make excel-other breeds and will need a large space to run. (5)lent domestic pets, there are still a large num-_________________. (6) In fact, racing greyhoundsber of former racers who have not beenare put up for adoption at a young age; even cham-adopted.pion racers, who have the longest careers, only workc. Good-natured and tolerant dogs, greyhoundsuntil they are about three-and-a-half years old. (7)speedily settle into any household, large orSince greyhounds usually live to be 12–15 years old,small; they are equally at ease in an apartmenttheir retirement is much longer than their racingor a private home.careers. (8) Far from being nervous dogs, grey-d.It is imperative that people overcome thehounds have naturally sweet, mild dispositions, and,common myths they harbor about grey-while they love to run, they are sprinters rather thanhounds that are preventing them from adopt-distance runners and are sufficiently exercised withing these gentle dogs.a few laps around a fenced-in backyard everyday.(9) Greyhounds do not make good watchdogs,