Which three of the following are physiological effects of ganglionic stimulating agents? (A) Stimulation of sympathetic ganglia and the adrenal medulla leading to cardiovascular responses (B) Initial transient stimulation and then a more persistent depression of all autonomic ganglia (C) Marked depression of CNS leading to analgesia. (D) Chronic exposure causes a marked increase in the density of nicotinic receptors contributing tolerance and dependence. (E) Combined activation of parasympathetic ganglia and cholinergic nerve ending by nicotine results in increased tone and motor activity of the bowel. (F) Inhibition of salivary and bronchial secretions that is followed by stimulation