Which one of the following is a serious limitation to Rule of Law in UK?

In standard constitutional analysis of the United Kingdom, the rapid growth of Delegated Legislation—whereby Parliament confers broad rule-making powers on the executive often beyond detailed parliamentary scrutiny—is a principal modern limitation on A.V. Dicey's doctrine of the Rule of Law. By contrast, the supremacy of Parliament is one of Dicey's twin foundational pillars of the British Constitution alongside the rule of law, while the fusion of executive and legislative powers in the cabinet system and the two-party system are structural features of British parliamentary government rather than exceptions to the rule of law.