Which of the following statements about health psychology is INCORRET?（以下哪项关于健康心理学的陈述是错误的？）
选项：

A:Health psychology is relatively young.（健康心理学相对年轻）;
B:Health psychology was developed in the 1980s.（健康心理学是在20世纪80年代发展起来的）;
C:Health psychology is dedicated to addressing the challenged presented by the changing field of health and health care.（健康心理学致力于解决不断变化的健康和保健领域提出的挑战）;
D:Health psychology is the branch of psychology.（健康心理学是心理学的一个分支）