Please choose the correct answer to the question: When a finger is cut and bleeds, platelets and plasma proteins move to the cut to stop the bleeding. As these move to the cut, this stimulates more platelets and proteins to move to the cut to stop the bleeding. What type of mechanism is being illustrated?

Answer1: negative feedback Answer2: positive feedback Answer3: regulatory feedback Answer4: stimulation feedback

Answer format: answer1/answer2/answer3/answer4