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?
O 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
Scientists are well known for being overly cautious and for taking
unnecessary safety measures
It is standard procedure to wear both space suits and heanng
protectors in laboratories