Answer: Option A."Type 1 Hypersensitivity"
Explanation:
Hypersensitivity reaction can be defined as the reaction produced by normal immune system in response to any foreign substance such as allergies as the protection barrier for body.
Type I hypersensitivity reaction is also known as immediate hypersensitivity reactions that involves immunoglobulin E (IgE)–mediated activation that release histamine or other mediators from basophils and mast cells.
Thus the correct option is A.
The answer should be: D. AED training
Automated electronic defibrillator use is easy, but in actual medical practice, there is only a few pattern of heart rhythm that was shockable. AED can be available in many places but trained personnel might not present when it was needed.
When AED used by someone without training, the helper can be protected by Good Samaritan Law. But their help might worsen the patient condition.