Choose the correct statement (s) in respect of duration of various psychotherapies?

The duration of classical psychoanalysis may continue for several years. Several recent versions of psychodynamic therapies are completed in 10–15 sessions. Behaviour and cognitive behaviour therapies as well as existential therapies are shorter and are completed in a few months. All of the above

All of the above

The duration of classical psychoanalysis may continue for several years. However, several recent versions of psychodynamic therapies are completed in 10–15 sessions. Behaviour and cognitive behaviour therapies as well as existential therapies are shorter and are completed in a few months.