The database contains orphaned Color records that are no longer connected to Part records.
You need to clean up the orphaned records. You have an existing ContosoEntities context object named context.
Which code segment should you use?

A.
var unusedColors = context.Colors.Where(c => !c.Parts.Any()).ToList();
foreach (var unused in unusedColors){
context.DeleteObject(unused)
}
context.SaveChanges();

B.
context.Colors.TakeWhile(c => !c.Parts.Any());
context.SaveChanges();

C.
context.Colors.ToList().RemoveAll(c => !c.Parts.Any());
context.SaveChanges();

D.
var unusedColors = context.Colors.Where(c => !c.Parts.Any());
context.DeleteObject(unusedColors);
context.SaveChanges();