Select the correct answer. A computer program in Shannon’s computer carries out a single mathematical operation in 1. 5 × 10-6 seconds. How much time would the program take to complete 2. 5 × 103 mathematical operations? A. 1. 67 × 10-9 seconds B. 1. 67 × 103 seconds C. 6 × 10-9 seconds D. 3. 75 × 10-3 seconds.