The correct option is B Lamarck
The theory of use and disuse of organs was proposed by Lamarck. According to this theory, the organs which are used more, develop more and those which are used less will degenerate. Continuous use of an organ, according to Lamarck, would also result in the inheritance of that organ to the next generation, while constant disuse of an organ would gradually result in the degeneration of the organ over time.