Answer:
Systematic Desensitization
Explanation:
Systematic desensitization is a behavioral therapy that has its roots in classical conditioning as it approaches include what has learned can b unlearned. It is developed by Joseph Wolpe for the treatment of anxiety-related disorders. The theory aimed to substitute conditions stimulus which is a response to an anxiety condition to the counter-conditioning that is relaxation techniques. There before one starts it relaxation techniques (deep breathing, visualization, etc) must be mastered.
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Colombus and his followers began the process of the Exploration of Americas
Columbus was an italian explorer who completed four voyage across the Atlantic Ocean. He and his followers discover the Existence of America in 1492 during these voyages
After a long siege, Grant captured Richmond in early April 1865. Richmond was a major railroad hub with access to the deep South.
Fear, agression, depression, and probably hopeless.