A trade magazine routinely checks the drive-through service times of fast-food restaurants. An 80% confidence interval that results from examining 578 customers in one fast-food chain's drive-through has a lower bound of 167.1 seconds and an upper bound of 170.5 seconds. What does this mean? Choose the correct answer below. O A. The mean drive-through service time of this fast-food chain is 168.8 seconds 80% of the time. O B. One can be 80% confident that the mean drive-through service time of this fast-food chain is between 167.1 seconds and 170.5 seconds. O C. One can be 80% confident that the mean drive-through service time of this fast-food chain is 168.8 seconds. O D. There is an 80% probability that the mean drive-through service time of this fast-food chain is between 167.1 seconds and 170.5 seconds