thE norwEgiAn govErnmEnt hAs triED to ______
A．EnCourAgE thE CompAniEs to DisCovEr nEw oil sourCEs
B．prEvEnt oil CompAniEs Employing pEoplE From northErn norwAy
C．hElp thE oil CompAniEs solvE mAny oF thEir proBlEms
D．kEEp thE oil inDustry to somEthing nEAr its prEsEnt sizE