41. David Kolb published his learning styles model in 1984 from which he developed his learning style inventory. Kolb's experiential learning theory works on two levels: a four-stage cycle of learning and four separate learning styles. Much of Kolb’s theory is concerned with the learner’s internal cognitive processes. Which of the following is a stage of Kolb’s model of experiential learning? (A) storming (B) assimilator (C) concrete experience (D) challenging action