What Is the Best Explanation of the Outcome of D

What is the best explanation of the outcome of D v East Berkshire Community NHS Trust [2005]?

A) No duty of care was owed; the House of Lords followed the earlier decision in X v Bedfordshire in which care authorities were found not to owe a duty of care to individuals due to various policy reasons, including the inability to identify exactly who of many personnel involved may have been negligent and the fact that the imposition of a duty would 'cut across the statutory framework' such services operated in.
B) A duty of care was owed to all of the claimants.
C) A duty of care was owed to the children but not to their parents.
D) A duty of care was owed to the parents but not to their children.