True.
Both barbiturates and alcohol are central nervous system depressants that can cause "mild sedation to total amnesia". Using them together would only increase the effect.
Option D is the answer because they will get scared to play bigger than them
The nurse needs to get the BP under control by reducing it to normal level, closer to 120/80. The adrenergic agonist has a tendency to increase BP by increasing heart rate, amongst other things.
Mostly in animal products.