Yоu аre given а chоice оf 4 configurаtions for a software system: A1, A2, A3, and A4. A1, availability 92%, response time = 12secA2, availability 97%, response time = 15secA3, availability 87%, response time = 3secA4, availability 97%, response time = 7sec Assuming all 4 configurations provide the same functionality, and given the two utility functions graphed as shown below, which configuration is optimal with respect to two quality attributes of availability and response time? Assume that the overall utility of an architecture is the sum of the utility obtained from response time and availability.