let's see. The conclusion is that Surely the mania for high technology can scarcely go further than this.
now we have couple of premises here
premise 1: a leading chemical company has developed a manufacturing process for converting wood fibers into a plastic
Premise 2: this new plastic can be used for, among other things, the hulls of small sailboats
now the consideratioin is that what does the company think sailboat hulls used to be made of?
now based on the above information I think C is the answer. Because A, B and E is totally out of scope.
now D is assuming too far. so C is the only correct answer.