Question: What is the primary difference between a manic and a hypomanic episode? Need Assignment Help? a. A manic episode requires 4 behavioral changes and a hypomanic requires 3 behavioral changes b. A hypomanic episode requires 4 behavioral changes and manic episode requires 3 behavioral changes c. A manic episode has to have persisted for 4 days and hypomanic has to have persisted for 7 days d. A manic episode must be severe enough to cause marked impairment in functioning or require hospitalization while a hypomanic episode must not be severe enough to cause marked impairment or hospitalization.