Answer:
Serfs
Explanation:
Slavery became increasingly uncommon through the Middle Ages replaced by serfdom by the 10th century
Psychotherapy helps person by
improving their mental help and helping resolve certain issues and it long used
in psychology but this is based on continuous human interaction. After 21 sessions
50% of the patients have had their conditions improved while after 40 sessions
staggering 75% of patients have had their conditions improved.
