Final answer:
Separation of powers limits executive authority in law-making, ensuring no single branch can dominate the legislative process. It encompasses checks such as Senate approval for judicial appointments and the ability to rewrite unconstitutional laws, promoting cooperation and proper balance in government. The correct option is b.
Step-by-step explanation:
Separation of powers acts as a check on parliament in law-making primarily by limiting executive authority. This constitutional principle is designed to ensure that no one branch of government can dominate or unduly influence the legislative process.
For example, executive dominance can diminish the power of the legislature, making it harder for them to check the executive and regain control over policy areas.
However, separation of powers also means that the judiciary has a role to play, as they possess the power of judicial review, which can further protect rights, including those of minority groups.
It serves as a necessary balance to ensure the various branches of government operate within their allocated powers and collaborate effectively. The correct option is b.