Periodically throughout recorded history, puzzling instances of psychiatric and neurologic symptoms have presented en mass<span>: outbursts of thrashing and screaming, or je rky spasms and abrupt vocal tics affecting a group of individuals at once and often attributed to causes like possession, witchcraft, and malingering. Such occurrences of so-called "mass hysteria" continue to confound the medical community, but growing experience has improved the understanding and approach to these seemingly contagious psychogenic events. </span>
The correct answer is B. We knew a storm was likely; the air was hot, humid, and absolutely still.
I believe that the answer is D.
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