A 32-year-old woman treated with an SSRI for major depressive disorder for 4 weeks reports minimal improvement and tolerable side effects. According to CANMAT recommendations, what is the most appropriate next step?AImmediately switch to a different antidepressant classBAugment with an antipsychotic immediatelyCIncrease the SSRI dose if not yet at the maximum recommended and reassess in a few weeksDStop medication and recommend psychotherapy aloneEDeclare treatment failure and refer for electroconvulsive therapyCheck my answer