Answer:
caused acetylcholine to be continuously released by the motor neurons.
Explanation:
The venom of black widow spider is neurotoxic and contains α-latrotoxin. This toxin binds to the surface receptors of neurosecretory PC12 cells and vertebrate synapses and activates the release of the neurotransmitter acetylcholine.
Acetylcholine is the neurotransmitter which plays important role in muscle contraction so the toxin allow the continuous release of the neurotransmitter which cause contraction of smooth muscle in airways and other muscle in the body and cause breathing difficulties and muscle spasms.
D, they know not what may happen due to their actions.
The correct answer is Learned Optimism.
Martin Seligman developed an area of psychology known as Positive Psychology. One aspect of positive psychology is learned optimism. It is where you teach yourself to think positively instead of negatively, you use certain techniques to alter your thought and behavior patterns so you see optimism in life instead of pessimism.