I am pretty sure it is using ethos :)
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 would be Learn. Hope this helps!
People may have a fascination with vampires for many reasons such as...... they think they're cool, that they think they could be real, and lastly they even fall in love with them for reasons such as "omg hes so hot"