Hurry ! by 2010, three out of four americans a. were older than 65. b. lived in the sun belt. c. were immigrants. d. lived in urban areas.

By 2010, three out of four Americans lived in urban areas. D. is the correct answer. A is just silly because 3 out of four Americans can not be all 65+, what about the babies that were born in 2010 and the teens and adults who are under 65? And, there was no peak in immigration. There would always be immigrants but not 3/4 of the USA are immigrants. Hope this helped!