All of the Following Statements Are True EXCEPT

All of the following statements are true EXCEPT:

A) when a stator is wound with a delta connection, the leads of the windings are connected together in series.
B) a wye (Y) winding is used in high-output AC generator.
C) a delta winding can put out about one-third more current at highway speeds than a Y-wound stator.
D) because it is about one-third less efficient at idle speed, there is a problem with delta-wound AC generators.