43. Who was the sender of the flower? (A)Aoy the writer had run into. (B)One of the writer's neighbors. (C)One of the writer's classmates. (D)The writer's mother.

45. From the text, we know that the “baby boomers” are a group of people who ____. ((A)have gradually become more noticeable (B)are worried about getting old too quickly (C)are enjoying a good life with plenty of money to spend (D)tried living a different life from their parents when they were young