A shopping mall operates two parking structures, A and B. Each customer parks at one of the two structures. The duration that each customer parks for is uncertain, and is divided into three categories (under 1 hour, more than 1 hour and less than 2 hours, more than 2 hours). The following is known about customer parking habits on a given day at the shopping mall: 30% of customers park at structure A. 30% of customers who park at structure A stay for less than 1 hour. 5% of customers park at structure A and stay for more than 2 hours. 40% of customers park at structure B and stay for more than 1 hour and less than 2 hours. 15% of customers park at structure B and stay for less than 1 hour. (a) What is the probability that a customer stays for more than 1 hour and less than 2 hours? (1 point) (b) What is the probability that a customer parks at structure B and stays for more than 2 hours? (1 point) (c) A customer parks at structure A. What is the probability that they stay for more than 2 hours