Sam, Ted, and Bill are going fishing. Bill is driving, and he will pick up Sam first and then pick up Ted. It takes 15 minutes f
or Bill to get to Sam's house, and twice that long to get from Sam's house to Ted's house. If Bill leaves his house at 9:00 a.m., when will he get to Ted's house? A. 9:15 a.m. B. 9:30 a.m. C. 9:45 a.m. D. 9:55 a.m.