2. A Professor, on his way to the University encounters traffic lights A,B, and C every morning. The lights work independently of one another and have probabilities 0.2,0.6, and 0.3 respectively of stopping the Professor every morning. Find the probability that the Professor on his way to the university on a Wednesday morning will be stopped by: (i) Traffic light A only (ii) A and B only (iii) Exactly two of the traffic lights (iv) None of the lights (v) At least one light.