I believe that the correct answer is D because it is already stated once that they need the sirens so it is giving us a fact that has already been stated.
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 to this open question is the following.
Although you did not provide options, we can say the following.
Today, prominent hospitals and medical schools commonly hire actors to portray the sick to help aspiring doctors learn to relate to patients. This is called role-playing.
Through role-playing, the actors can play the role of patients so this can help new doctors in developing the kind of relationship they are going to have with real patients. This helps new doctors to get previous training on how to develop certain skills in relationships.
This is a very effective method in training use by consultants. The role.playing method works because participants learn through acting different roles so they can understand the perspectives of different patients. Actors are asked to play the role of patients and act in different situations, so doctors know what they would do or how to react in certain circumstances.
Penelope was far from Odysseus as well so there both were sad that they were apart. Penelope has to deal with the suitors and lead them in a way and Odysseus had to deal with his crew and lead them