What effect does Bromethalin have on the body?

Bromethalin is a rodenticide that affects the central nervous system. Its primary mechanism involves inhibiting oxidative phosphorylation in mitochondria, which leads to a decrease in ATP production. This disruption impairs cellular energy metabolism and can lead to neurological dysfunction.

The reason choice B is correct is that bromethalin poisoning can manifest in symptoms such as respiratory distress due to the overall failure of respiratory and metabolic processes. As energy levels drop, respiratory muscles may weaken, leading to difficulty in breathing.

The other options do not accurately describe the effects of bromethalin on the body. Blood clotting interference is more typically associated with anticoagulant rodenticides rather than bromethalin. While bromethalin does affect the nervous system, it does not primarily cause direct respiratory distress but may contribute to it as a secondary effect of neurological compromise. Liberating toxic gas in the stomach is not characteristic of bromethalin's action; it primarily affects mitochondrial function rather than gas production. Promoting blood clotting also does not align with the action of bromethalin, as its primary effects are related to energy metabolism and neurological impact rather than coagulation pathways.