How is serotonin syndrome best described?

O A hyperserotonergic condition, often due to medications like benzodiazepines or beta-blockers
O A hyposerotonergic condition, often due to medications like SSRIs or MAOls
O A hypernoradrenergic condition, often due to medications like SSRis or MAOls
O A hyperserotonergic condition, often due to medications like SSRIs or MAOls