Final answer:
Septic shock is precipitated by an overwhelming infection, and the immune and inflammatory responses triggered by the infection can lead to a dangerous drop in blood pressure and multiple organ dysfunction syndrome.
Step-by-step explanation:
Septic shock is precipitated by an overwhelming infection, which is option A. In septic shock, the immune and inflammatory responses triggered by a bacterial infection can lead to a dangerous drop in blood pressure and multiple organ dysfunction syndrome. The release of pro-inflammatory cytokines, such as tumor necrosis factor, can cause vasodilation and increased vascular permeability, resulting in low blood pressure and tissue damage.