Which of the following is an example of an anticoagulant rodenticide?

Warfarin is an example of an anticoagulant rodenticide because it functions by inhibiting the synthesis of vitamin K-dependent clotting factors, which are crucial for normal blood coagulation. When rodents consume warfarin, it interferes with their ability to clot blood, leading to internal bleeding and ultimately death. This mechanism of action makes it effective as a rodent control agent.

In contrast, raticide is a general term that refers to any substance used to kill rats and does not specify the mechanism of action. Acetaminophen, commonly known as a pain reliever and fever reducer, is not used as a rodenticide. Boric acid is typically used as an insecticide and does not function as an anticoagulant. Each of these other substances has distinct applications and mechanisms, but warfarin specifically is recognized for its role as an anticoagulant in rodenticides.