The nurse is caring for a 40-year-old client. Which behavior by the client indicates adult cognitive development

A. Has perceptions based on reality.
B. Assumes responsibility for actions.
C. Generates new levels of awareness.
D. Has maximum ability to solve problems and learn new skills.

狭义的学习心理学研究的对象是（）

A.学生

B.人和动物

C.动物

D.万物