Even though we are living in an age where growing old is thought of as an inevitable misery, this doctor has been changing the game for seniors over the last 25 years.

        It all started in 1991 when the Harvard-educated physician was transferred from working in a stressful emergency room to being the medical director of a nursing home in upstate New York. The depressing and regimented (严格管制的) environment got him thinking on what exactly could improve the residents’ conditions.

        Even though animals in nursing homes were illegal at the time, Dr. Bill Thomas took a chance. Based on a hunch (直觉), he brought in two dogs, four cats, hens, rabbits, 100 birds, a multitude of plants, a flower garden, and a vegetable patch.

        The change was dramatic. There was a 50% drop in medical prescriptions along with a dramatic decrease in death rates—but most importantly, the residents were simply happier.

        Dr. Thomas’s approach, named the Eden Alternative, has driven nursing homes to allow a more autonomous (自主的) and creative living space for their elderly. It erases the belief that growing old means growing useless. He encourages residents to think of their age as an enriching new phase of life rather than the end of it.

        Thomas, now a speaker and author of several books, also created small, independently-run residences with their own bedrooms and bathrooms, and he has been preaching a singular message that getting old is not a bad thing.

        “Within six weeks, they had to send a truck around to pick up all the wheelchairs,” Thomas told the Washington Post. “You know why most people in nursing homes use wheelchairs? Because the buildings are so big.”

        The 56-year-old doctor’s methods have been adopted in Australia, Japan, Canada, and America with enormous success. Last year he published Second Wind: Navigating the Passage to a Slower, Deeper, and More Connected Life, a guide on how to shift our perspectives on aging and growth.

        He is currently traveling through North America performing with his guitar and his enthusiasm on his Age of Disruption Tour.

解析：D。根据题干中的bringing animals and plants into the nursing home可定位至原文第三段。该段提到，当时在养老院里饲养动物是不合法的，但比尔·托马斯医生还是冒险一试，在养老院里养了动物和植物。D项与此相符，对应原文中的illegal，故为正确答案。

错项排除：A项中的made a mess和C项中的won instant support from the state authorities在原文中都没有依据，故均可排除。托马斯医生的行为是不合法的，并不是专业人员都会做的事，故B项错误。