A local city has three newspapers A, B, and C. 45% of the residents in this city subscribe to newspaper A, 35% subscribe to newspaper B and 30% subscribe to newspaper C. 10% of residents subscribe to both A and B, 8% subscribe to both A and C,5% of them subscribe to both B and C. It is also known that 3% of residents subscribe to all three of them. For a randomly selected resident find the probability that: a) [3 marks) the resident subscribes to none of them. b) [3 marks] the resident subscribes to only newspaper A. c) [4 marks) the resident subscribes to exactly one of the newspapers