Final answer:
The median age of people living in the U.S. was reported to be about 40 years according to the 2010 U.S. Census Bureau data. Therefore, options B) 34 years would not be the right answer, and options C) 35 years or D) 36 years would be closer to the official statistics, although checking the latest data is advisable for an exact figure.
Step-by-step explanation:
The student has asked what the median age of people living in the U.S. is if the median age in Arizona is 34. To answer this question, it is important to understand that the median age of one particular state does not necessarily represent the median age of the entire country. Statisticians use data from the entire population to calculate the median age for the whole country. According to the U.S. Census Bureau in 2010, the median age of the U.S. population was about forty years. This suggests that option B) 34 years is incorrect, and if one were to choose from the provided options without further updated data, option C) 35 years or option D) 36 years would be closer to the Census Bureau's information. However, do note that this data might not be the latest, and looking up the most recent median age would be necessary for the most accurate answer.