B. because anything can happen to anybody. Whether it be at school, at home, or anywhere else.
Answer:
The myocardical oxygen supply has fallen below demand.
Explanation:
Angina is the name given to chest pain caused by decreased blood flow in the heart, which is called ischemia. The biggest cause of angina is atherosclerosis, which happens when plaque builds up inside the coronary arteries and this accumulation of fat causes the arteries to narrow or even become clogged, and the blood can't flow. Thus, the heart does not receive the necessary nutrients, such as oxygen, because of decreased blood flow, which causes chest pain.
Answer: hypoxia.
Explanation:Inadequate blood flow to a particular area of the body can result in too little oxygen being delivered to that area, a condition known as hypoxia.
it can be used to help repair broken DNA, even when the break involves both strands of the double helix.
The treatment you are looking for is called Psychotherapy.