For this case we have the following functions:

We must find the product of both functions:

We apply distributive property term to term:

We add similar terms:

Answer:
Option B
Answer:
A.
Explanation:
Without knowing the writer, I will assume they are anti-immigrant.
Sinoatrial node part of the autonomic nervous system adjusts the heart rate and the arteriole diameter to regulate blood pressure through negative feedback
The SA (sinoatrial) node is generates an electrical signal that can causes the upper heart of the chambers (atria) to contract. The signal and then passes through the AV (atrioventricular) node to the lower of the heart chambers (ventricles), causing them to contract, or to pump. The SA node is considered the pacemaker of heart.
The sinus node continuously generates electrical impulses, thereby setting the normal rhythm and also rate in a healthy heart. Hence, the SA node is also referred to as the natural pacemaker of the heart
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Answer:
Generalized anxiety disorder
Explanation:
Generalized Anxiety Disorder is the overthinking issue which affect the person's future forecasts to include only the extreme situations and get hurt themselves. In other words, these kind of people are addictive to worries and sadness and find it difficult to control their worry. The result is that we see them almost irritable, more sleepy, always tired, lower productivity and time managements are the prominent issues with these people.