Answer: Question 15 is asking you to submit your character sketch. Character sketch: Demonstrate the personality, habits, Physical appearance, and even how they react to certain things(Stress, people, etc.) And its asking to make sure you have no mistakes, and to make sure that everything is made uniform or whole(Logical and consistent). Sorry if i'm wrong.
That means that he had managed to write in a well and effective manner, one capable to persuade, which sure is a motive of high satisfacton,specially for a journalist and activist.
The answer would be <span>A)James had a great time at the museum; but he left his hat there because the semicolon links the clauses in the compound sentence. </span>