Read the passage from "Close Encounters of the Bear Kind. "Fortunately John has had practice, so this bear is drugged safely. He and his coworkers then measure the bear and the den. They return the bear to its sleeping hole after a half hour. Occasionally, they don't return the bean Instead, they take it to an artificial den at the University of Alaska, where other scientists can study its hibernation more easily. Which notes paraphrase content from the article? Select all correct answers, Part of the research is to measure the bear.

They take it to an artificial den at the University of Alaska

John safely drugs bears to study how they hibernate

They learn more about hibernation in artificial dens

They return the bear to its sleeping hole after a half hour