You are implementing an ASP.NET application that uses LINQ to Entities to access and update the database.
The application includes the following method to update a detached entity of type Person.
private NorthwindContext _entities;
public void UpdatePerson(Person personToEdit)
{
}
You need to implement the UpdatePerson method to update the database row that corresponds to the
personToEdit object.
Which code segment should you use?

A.
_entities.People.Attach(personToEdit);
_entities.ObjectStateManager.ChangeObjectState(personToEdit, EntityState.
Modified);
_entities.SaveChanges();

B.
_entities.ObjectStateManager.ChangeObjectState(personToEdit, EntityState.
Added);
_entities.SaveChanges();

C.
_entities.People.ApplyCurrentValues(personToEdit);
_entities.SaveChanges();

D.
_entities.People.Attach(new Person() { Id = personToEdit.Id });
_entities.ObjectStateManager.ChangeObjectState(personToEdit, EntityState.
Modified);
_entities.SaveChanges();