The sentence which is the most objective is <span>A. My mother taught Italian lessons at the community center.
</span>It is a fact, therefore it is objective. The other sentences are somebody's opinions - stupid sisters, crazy Greek family, a real pain - these words show that it is someone's opinion, which is subjective, not objective.
The definition of robbery is: the action of robbing a person or place.
The correct answer is
A) Dora Rinehart earned the title of “America’s Greatest Cyclienne” in the western part of the United States.