Read the excerpt from The Hot Zone.
There she met Lieutenant Colonel Trotter, a stocky,
dark-haired man whom Nancy had worked with for
many years. They put on their inner gloves and taped
their cuffs. Nancy put a pair of hearing protectors over
her ears. She had started wearing them a while back,
when people had begun to suspect that the roar of air
in your suit might be loud enough to damage your
hearing. They hauled on their space suits and sealed
the Ziploc zippers. They edged around each other as
they fiddled with their suits. People wearing biohazard
space suits tend to step around one another like two
wrestlers at the beginning of a match, watching the
other person's every move, especially watching the
hands to make sure they don't hold a sharp object. This
cringing becomes instinctive.
Which best states the central idea of this excerpt?
It is always necessary to work with a partner when
dealing with unidentified substances.
O Extreme precautions must be taken when dealing
with potentially hazardous materials.
O Scientists are well known for being overly cautious
and for taking unnecessary safety measures.
O It is standard procedure to wear both space suits
and hearing protectors in laboratories.