A 72-year-old woman with major depressive disorder and no psychotic features has failed two adequate trials of SSRIs. According to CANMAT 2023 guidelines, which next step is most appropriate?ASwitch to another SSRI from the same classBAugment with a second-generation antipsychotic such as quetiapineCIncrease SSRI dose beyond recommended maximumDStart long-term benzodiazepine monotherapyERecommend no further pharmacotherapy and focus on watchful waitingCheck my answer