wE CAn inFEr From thE lAst pArAgrAph thAt ______.
A．smokErs shoulD not ExpECt to BEComE AirlinE pilots
B．smoking in EmErgEnCy CAsEs CAusEs mEntAl illnEss
C．no AirlinE pilots smokE During Flights
D．smokErs mAy provE unEquAl to hAnDling EmErgEnCy CAsEs