Which of the following observations would provide evidence supporting Lamarck's proposed evolutionary mechanism of "inheritance of acquired characteristics"?A) a decrease in tail length in dogs after 20 generations of dogs that had their tails docked (cut off) as puppiesB) an increase in length of a giraffe's neck after trees in the area decreased in heightC) a decrease in the size of the tails of salamanders in a population that immigrated into a cave 20 generations earlierD) an increase in average speed of deer on an island when the amount of food increased

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