Based on the Text, Which Is the MAIN Psychological Effect

Based on the text, which is the MAIN psychological effect of entering a nursing home?

A) Residents lose autonomy because all the emphasis is on safety and following rigid institutional rules.
B) Residents get frustrated because they have to do everything on their own.
C) Functioning often improves because now residents are getting social stimulation.
D) People feel energized and pleased to have others take care of their needs.