If you study biochemical etiology, which of the following are you most likely to study?

A. people’s reactions during the five stages of grief
B. physical illnesses that cause emotional imbalances
C. reactions to life events that cause anxiety
D. healthy and unhealthy responses to aging and grief

determining a set of tasks for each goal

when in a crucial situation, after calling 911, the correct posture for delivering effective compression is the proper hand placement.

first, place two fingers at the sternum, then put the heel of your other hand next to the fingers and place hand on top of the other. lock your elbows by using your body’s weight and compress the victim’s chest with a depth of 2 inches.

moreover, do 15 compression and 2 breaths, this process must be done four times until there is a pulse or a arrive.