The healthcare provider determines that a first-time mother has postpartum depression and would benefit from low-dose antidepressant therapy. Which category of drugs is most appropriate for this patient? 
a) Selective Serotonin Reuptake Inhibitors (SSRIs) 
b) Beta-Blockers 
c) Angiotensin-Converting Enzyme (ACE) Inhibitors 
d) Benzodiazepines