Which of the following statements is least likely to cause the ignition of fuel vapors?（）<br>A:Static electricity<br>B:An open running electric motor<br>C:Loose wiring<br>D:Explosion proof lights

Which of the following statements is least likely to cause the ignition of fuel vapors?（）
A:Static electricity
B:An open running electric motor
C:Loose wiring
D:Explosion proof lights

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