Where is the company going to operate

A．John stopped smoking while working.
B．John smoked while taking a rest.
C．John restarted his work after his failure.
D．John made great efforts to begin his work again.

A．have to adjust to the problems of immigrants nowadays.
B．have enough experience to deal with immigration.
C．have problems in adjusting the waves of immigrants.
D．have experience in adjusting to immigration problems.