The most accurate critique of presidential systems of government from the options provided is:
Presidential systems of government are more likely to result in a high concentration of power in a single branch.
This critique acknowledges the potential for presidential systems to create a significant concentration of power in the executive branch, particularly because the president often has considerable authority relative to the legislative and judicial branches. While the other statements may have some validity, they are either incorrect or less substantial critiques. For example, the claim about the legislature selecting the head of the executive branch is more characteristic of parliamentary systems, and while courts may face limitations in checks on presidential power, there are generally mechanisms for judicial review and accountability. Lastly, while divided government can occur, it is not an inherent feature of presidential systems.