When the sirens are heard, most likely people would go inside and turn on the local news to get more information.
Answer:
The answer is option B. positive feedback
Explanation:
Positive feedback is a process in which the end product of a stimulus give rise to more of that stimulus. This mechanism is part of the system that regulates homeostasis in the body.
Allan already had a heart attack and can try to prevent another one by changing the diet, exercising, or even quit smoking, but there are non-modifiable risks such as age, sex and generic heritage, so If Allan is over 40 years old, male or comes from a family with heart diseases, Allan needs to be extra careful because those factors cannot be changed no matter how the way of life is changed.