Brooke, a search-and-rescue dog, is a German shepherd that specialized in locating and rescuing missing or trapped people. But at age 10, Brooke began to slow down—her vision dimmed, and she had difficulty bounding into and out of a rescue vehicle. Brooke's work had provided a flurry of constant activity and specialized training, and the transition to the relatively sedentary lifestyle of an ordinary pet confronted the dog with a difficult adjustment. Mindful of these challenges, handler Tracy Sargent took more than a year to fully retire Brooke, lavishing her with extra attention and taking her on shorter and shorter work assignments. Eventually, Brooke seemed happy to stay home and rest. Do It!

Brooke became .

A irreverent
B devastated
C sprightly
D acclimatized