Discussion
Which one of the following caused the search for a fabric like Kevlar?
Answer: A
The search was caused by a shortage in the gasoline supply.
The passage says that in 1964 there were gasoline shortages due to conflict in the Middle East, and Kwolek's group was trying to make a light, durable fibre for tires so that vehicles could get better mileage.
Protecting police officers came later with the vest, and musical instruments are a use of the fibre. The passage does not mention asbestos.
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