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.

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Brooke became _________.

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A sprightly
B devastated

A sprightly

A. sprightly

Based on the information provided, the most appropriate answer would be:

A. sprightly

Explanation: The passage describes how Brooke, the search-and-rescue dog, began to slow down and experienced physical difficulties due to age. However, it also mentions that Tracy Sargent, her handler, took the necessary steps to gradually retire Brooke by providing her with extra attention and shorter work assignments. Eventually, Brooke seemed happy to stay home and rest, suggesting that she adjusted well to her new lifestyle. The word "sprightly" means lively or spirited, which implies that Brooke was able to maintain her positive disposition despite the challenges she faced.