Answer:
Option A. Jackson is concerned about abusing the power he has been given. is the correct answer.
Step-by-step explanation:
The phrase "without transcending its authority" suggests that Jackson is concerned about abusing the power he has been given as the President. This implies that Jackson is aware of the limits of the Executive power and intends to follow the Constitution while performing his duties. Jackson wants to ensure that he does not exceed the authority granted to him by Congress and the Constitution, indicating his respect for the separation of powers and the rule of law. Therefore, option (a) is the correct answer.