E86.0 is the ICD-10 code for dehydration
It is A. sleeping deeply.
Delta waves, like other brain waves, are recorded with an electroencephalogram (EEG) and are usually associated with the deep stage 3 of NREM sleep, also known as slow-wave sleep (SWS), and aid in characterizing the depth of sleep.
A, because it is unhealthy and the rest are good plans. <3