After graduating from high school, Raymond floundered for a brief period. He did not know what he wanted to do or who he wanted to be. He tried several different things. According to Erikson, Raymond experienced

Most authorities believe that individuals in their 70s and 80s who succeed in exercise performance such as the 10K road can attribute their success to

A. active lifestyles B. large hearts C. competition in athletics at a young age D. retirement centers

The key take-home message from the author's discussion of crop circles is that

A) aliens or some form of extraterrestrial being has been trying to communicate with humans for hundreds of years. B) the cause of some real-world events are unexplainable and unknowable. C) critical thinkers must select the simpler of two claims that fit with the available evidence. D) hoaxters often impede scientific progress into the understanding of unexplainable events like the English crop circles.