____42. Chala is a 10th grade student from Jimma high school. He successively scored a lowest mark in mathematics test three times and hated the subject. He also hated physics because of its similarity with mathematics but he did not hate chemistry though it has similarity. Based on this case identify A. The unconditioned stimulus ____________________________________________ B. The unconditioned response____________________________________________ C. The conditioned stimulus____________________________________________ D. The conditioned response____________________________________________ E. Stimulus generalization____________________________________________ F. Stimulus discrimination____________________________________________ G. Previously neutral stimulus____________________________________________