参考答案

正确答案：D
解析：题目问：根据Fries and Crapo的观点，充分的健康选择应建立在什么基础上?通过阅读文章可知， Fries and Crapo认为，对于那些热衷于保持生命质量和生命数量的人来说，个人的健康选择应反映在一些行为上，这些行为与能够增加生命力和长寿的统计概率相关。“Thus，for those individuals who are interested in preserving both the quality and quantity of life，personal health choices should reflect those behaviors that are associated with a statistical probability of increased vitality and longevity．”所以，答案是D。