Where is the multiple choice answers? so i can give you the correct answer
In a situation, for example, if someone(s) is in a cano or small boat, and the waves hit the boat and it knocks over. You should risk calling the police, or taking a risk to jump in the water and rescue the people that are in there. Two heads are better then one, don't you suppose? Or when you are in school, and someone is bullying the other person, take a risk to stand up for them !
Hope helps-Aparri
The diagnostic test that records the electrical activity of the heart is called ECG or Electrocardiogram. An ECG is a painless and simple test, which uses electrodes arranged and attached to your skin, and records the activity of the heart. ECG detects any abnormal rhythm and pattern of the heart beat and this helps doctors in diagnosing arrhythmias.