SORU: aşağıdaki parçaya göre cevaplayınız
Which of the following can be inferred from the passage?
One day in 1952, John W. Hetrick was driving with his
wife and daughter in the front seat when he had to
change his direction suddenly and brake quickly to
avoid an obstacle. Instinctively, he and his wife put their
arms out to protect their daughter in case of a crash.
This event inspired him to provide automobiles with
airbags to protect people during accidents. Hetrick had
been an engineer in the US Navy during World War II.
He recalled a compressed-air torpedo accidentally
turning itself on, causing its canvas cover to shoot up
into the air, 'quicker than a blink of an eye'. In 1952,
Hetrick proposed using compressed air to inflate airbags
rapidly during car crashes. He received a patent for this
invention in 1953, but car manufacturers in the 1950s
were more interested in style than safety. Later,
consumers became more safety conscious and airbag
technology improved. The first airbags were optional,
but by the 1990s, they had become standard. Although
airbags have saved thousands of lives, they are not
always sufficient to prevent death and injury during
crashes. Travellers must also wear seat belts, and
automobiles must have dashboards made of soft
materials and steering columns that can absorb energy
during impact from car crashes