Final answer:
The least risky treatment option for Polly's depression is pharmacotherapy.
Step-by-step explanation:
The least risky treatment option for Polly's depression is pharmacotherapy.
Pharmacotherapy involves the use of medication to treat the symptoms of depression. It is considered to be the least invasive treatment option and is generally safe when prescribed and monitored by a healthcare professional. Alternative treatments like deep brain stimulation (DBS), prefrontal lobotomy, and electroconvulsive therapy (ECT) are more invasive and carry greater risks and side effects.
Learn more about treatment option for depression