甲县的电热毯厂生产了一批电热毯，与乙县的昌盛贸易公司在丙县签订了一份买卖该批电热毯的合同。丁县居民张三在出差到乙县时从昌盛贸易公司购买了一条该批次的电热毯，后在使用过程中电热毯由于质量问题引起火灾，烧毁了张三的房屋。张三欲以侵权损害为由诉请赔偿。下列哪些法院对该纠纷有管辖权？（）

A.甲县法院

B.乙县法院

C.丙县法院

D.丁县法院

An analyst determines that an 8 percent option-free bond, maturing in 2015, would experience a 3 percent change in price if market interest rates rise by 50 basis points. If market interest rates fall by 50 basis points, the bond’s price would increase by:（）

A. exactly 3%.

B. less than 3%.

C. more than 3%.