Someone Sees a Burglar Breaking into Your House, So They

Short Answer

Someone sees a burglar breaking into your house, so they call 911 and the dispatcher sends police officers to your house.Relating this scenario to a feedback loop that maintains homeostasis in your body, indicate the role of each component using the following answer code.
a.Effector
b.Message sent from sensor
c.Sensor
d.Message sent from integrator
e.Controlled variable
f.Integrator
-911 call