A、Seventy percent. B、Eighty percent. C、Ninety percent. D、Ninety-five percent.. C关于移植树木的费用，文章中提到90%的砍伐和清理费用会由联邦资金支付，因此C 为本题答案。

(26) The mountain town of Canton is at an elevation of 6,000 feet. It is surrounded by thick underbrush and pine trees. Because of six years of drought, these plants are a major fire hazard. Thousands of trees and tons of underbrush are going to be removed over the next five years at a minimum cost of ＄3 million. The brush will be removed first, and then the trees will be toppled and removed. A cleared nonflammable area will then safely surround the town of 4,000.
     Residents look forward to the work, because it will help their town survive a future fire. A recent fire burned 4,000 acres and destroyed 11 homes in nearby Hamilton. The fire was raging toward Canton, but a sudden rainstorm put it out. Residents know that they won’t get lucky twice, so they are looking forward to this massive clearing operation.
     (27) Ninety percent of the cutting and clearing will be paid with federal funds. Unfortunately, if the trees are on private property, they must be paid for by the residents themselves. Prices can range as high as ＄1,000 to cut and remove one tree. Officials say that residents can apply for state and federal loans if necessary.
     However, Thelma, a 65-year-old widow, thinks that it does no good to her, because she is living on social security. She has got four trees on her property. (28) Therefore, the government’s not going to loan her money when they know there’s no way she can pay it back. She thinks that these planners with all their big ideas ought to think of the little people.