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point(s) possible Submit quiz A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 90% confidence interval that results from examining 605 customers in one fast-food chain's drive-through has a lower bound of 171.0 seconds and an upper bound of 174.6 seconds. What does this mean? . . . Choose the correct answer below. OA. One can be 90% confident that the mean drive-through service time of this fast-food chain is 172.8 seconds. O B. One can be 90% confident that the mean drive-through service time of this fast-food chain is between 171.0 seconds and 174.6 seconds. O C. The mean drive-through service time of this fast-food chain is 172.8 seconds 90% of the time. OD. There is a 90% probability that the mean drive-through service time of this fast-food chain is between 171.0 seconds and 174.6 seconds