The Analects is a collection of Confucius’s words and deeds by his ________ and their followers. A: disciplines B: descriptions C: disciples D: discriminations

Which of the following is wrong about professionals and amateurs A: No clear-cut distinction can be drawn between professionals and amateurs in science. B: Amateurs' participation into scientific research has become more difficult. C: There is no discriminations of professionals against amateurs in geology. D: Entrance to professional geological journals has become harder for amateurs.