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：A。题干问到托马斯提出新理念的接受度如何。原文倒数第二段首句提到，托马斯的方法已经在澳大利亚、日本、加拿大和美国获得了巨大的成功。A项与此相符，其中的is gaining ground对应定位句中的have been adopted...with enormous success，in many countries是对句中in Australia, Japan, Canada, and America的概括总结，故正确答案为A。

错项排除：B项中的being heatedly debated、C项中的considered revolutionary和D项的winning approval from the government在原文中都没有依据，故均可排除。