stuDiEs oF CirCADiAn rhythms CAn BE AppliED to proBlEms rAnging From ChroniC insomniA in FrEquEnt trAnsContinEntAl Air trAvElErs to workErs in All-night plAnts BEing inEFFiCiEnt.（）
(A) to workErs in All-night plAnts BEing inEFFiCiEnt
(B) towArD workErs in All-night plAnts BEing inEFFiCiEnt
(C) to workErs in All-night plAnts who ArE inEFFiCiEnt
(D) to ComBAt workEr inEFFiCiEnCy in All-night plAnts
(E) to DECrEAsED EFFiCiEnCy Among workErs in All-night plAnts