The correct answer is: Only argument I is strong.
Argument I is a strong argument because it is based on the principle of separation of powers. The principle of separation of powers holds that the three branches of government (executive, legislative, and judicial) should be independent of each other. This is to prevent any one branch from becoming too powerful and to ensure that there is a system of checks and balances.
Argument II is a weak argument because it is based on the assumption that the executive branch is always right. This is not always the case. The executive branch can make mistakes, and it is important for the judiciary to be able to check the executive branch when it does.
In conclusion, only argument I is a strong argument. Argument II is a weak argument.