Kraits are highly venomous snakes found in southeast Asia. Some species produce bungarotoxins. One form of bungarotoxin targets nicotinic receptors. Which of the following would be DIRECTLY targeted by this toxin (choose all that apply; incorrect choices subtract from point total for this item)? Select one or more: a. somatic effector organs b. all autonomic postganglionic fibers c. sympathetic effector organs d. parasympathetic effector organs