The diagnostic tool that would be helpful in diagnosing this would be echocardiogram. It is the most suited tool because it the functions and the structure of the ventricles can be clearly or easily observed. It can show dysrhythmias and the changes that happens in the left ventricular hypertrophy.
Dont get hurt. its important because ow.
(1) nightmares, night terrors, teeth grinding, nocturnal sleep related eating disorders......(2) laughter and fear.....(3) Darkness is essential to sleep, the absence of light sends a critical signal to the body that it’s time to rest. Light exposure at the wrong time alters the body internal “sleep clock”
Answer would be A. because you need access to clean raw water sources.