Which of the Following Is the Most Accurate Information to Tell

Multiple Choice

Which of the following is the most accurate information to tell a patient about how artificial pacemakers work?

A) Artificial pacemakers generate electricity
B) Artificial pacemakers provide electrical stimulation to the heart when its own pacemaker cannot meet the metabolic needs of the body
C) Artificial pacemakers help the heart muscles to contract
D) Artificial pacemakers increase the cardiac output