The sentence that is the best example of an objective summary is option B.
The constitution lists the basic functions of the three branches of government.
It is the correct answer because it is just providing a brief information without adding a personal opinion.
Objective is defined as the “not influenced by personal feelings or interpretation.” A summary consists on a short statement that provides the main points or ideas pertaining to something. So an objective summary is a short statement or paragraph that tells what something is about but does not include irrelevant details or your opinions.
Is this your thesis or your opening statement? If it’s an opening statement, it’s a very good hook to pique the reader’s interest. If it’s a thesis, you need some more structure and evidence to back it up.