【正确答案】 D

【答案解析】[听力原文]
   M: Do you suffer from sore or swollen legs? Is it keeping you from living the life you want? Hello, I'm Dr. Trevor, and I am a podiatrist that specializes in treating leg and feet problems. Every month, my clinic helps hundreds of patients regain the ability to walk and run comfortably. We rely on Eastern holistic methods such as massage, acupuncture, and all-natural medicines. No drugs, no side effects. Our philosophy is that every person should be able to afford medical attention, and so we keep our fees reasonable. Most health insurance plans are accepted. The clinic is conveniently located in the Lomas Square shopping center, just minutes away from Highway 30. Visit us today to learn how you can say goodbye to your leg problems.
选项A错误，cardiologist意思是“心脏病医生”。选项B错误，dermatologist意思是“皮肤病医生”。选项C错误，neurologist意思是“神经病医生”。选项D正确，这名医生是足病医生(podiatrist)，专攻腿部和脚部问题。