The answer is B because "I have visited many cities including the following" indicates that there is going to be a list of cities. A colon is used to introduce a series of items or to separate two independent clauses; however the second sentence has to add on to the first.
Answer:
The answer would be like this, using MLA format for in-text citations:
In order for you to know a person, you must first know his past, and especially the people, and circumstances, that shaped him/her into what he/she has become: "everything we are and all that we do can be traced back, in one way or another, to early influences..." (Monroe 35). Parents, relatives, very close and special people, and also circumstances, are the most important background information for someone to say they know anyone. In this man´s particular case, it is four main figures who become the framework, of who he is: "In my case, four figures from my childhood helped to make me who I am... my father, my mother, my grandmother, and my grandfather." (Monroe 35), because of the roles that they played in his life, and the way they impacted him: "... each giving me a gift that is unique..." (Monroe 35). And it is only through knowing about them, and how they played that role in his life that anyone can understand who he is (Monroe 35).
Republican by nature, Brutus never tried to hide his political convictions. Married to Cato's daughter, his cousin sister Porcia, he wrote a text extolling the qualities of his deceased father-in-law. Cesar was very fond of him and respected his opinions very much. However, Brutus, like many other senators, was not satisfied with the state of the Republic. Cesar had been appointed perpetual dictator and had passed several laws that concentrated power in his hands. It was rumored that only the crown was missing to match any king. The final period of the monarchy in Rome was a bad memory. The Romans had replaced royalty with the Republic and the more traditional did not want a return to such a system. Brutus was finally motivated to join the conspiracy by anonymous letters sent to him in which Rome asked for help. Brutus started a conspiracy against César along with his brother-in-law and friend Gaius Cassius Longinus and other senators. In the Ides of March (March 15, 44 BC), a group of senators, including Brutus, murdered César in the theater of Pompey.