单项选择题Youcreateamaster-detailform.Theusersneedtobeabletoexittheformquickly,adheringtodefaulttransactionprocessing,regardlessofthecursorlocation.YoubelieveyoucanachievethisusingaKey-Exittrigger.Whatdoyouneedtodotoimplementthisrequest?()
A.Define a Key-Exit trigger for all the blocks in the form.
B.In the Object Navigator, highlight all the items and define a Key-Exit trigger.
C.Define a Key-Exit trigger on the primary key item in the master block.
D.No additional key-trigger definition is necessary.