Each of the following matrices is the transition matrix of a Markov chain. Decide whether each one regular, absorbing, or Neither. 0.7 0.3 0 (a) P = 0.8 0 0.2 0.2 0.5 0.3 [0.7 0.3 (b) P = 0.8 0.2 1 0 0 (c) P = 0 0.7 . 0.3 0 0.5 0.5