ll welders in a factory begin was apprentiors. Every year the performance of each apprentice in reviewed. Past records indicate that after each review, 10% of the apprentice are promoted to professional welder, 20% are terminated for insatisfactory performance, and the remainde contine as apprentices (A) (3 points) Draw a transition diagram. (B) (3 points) Write the transition matrix (C) (4 points) What is the probability that an apprentice is promoted to professional welder within 2 years? Within 4 years?