The correct answer would be option C: "feels slightly foolish about the events that occur", this due to the way the excerpt is written, since, it seems the author wanted to let the readers know that the narrator isn't stupid, so that they keep that in mind, when they read about a foolish thing said narrator did. If the narrator did something dumb, then option A and B would be discarded, as would option D.
The Independence of America was declared on July 4, 1776. "Unanimous Declaration of the thirteen United States of America" is the name of the document which records this process. The document announced the decision of the thirteen British colonies that belonged to the United States to define themselves as thirteen newly independent states. John Adams, first vice president of the USA, was a very important figure in this process. The independence was discussed by a committee and the decision to approve the proposal was unanimous.
Exercise:
"Dear King, we say no more been a colony. We want to break free, leave the parent house. We´re sure the moment it's now, so please don´t make it more difficult.
Because when we are in you´re custody have no money to built our house.
Because you don´t let us calm, always arranging someone to look after us.
Because you set rules we don't agree with without even asking.
We, therefore, the Representatives of the United States of America, in general Congress, Assembled, appealing to the Supreme Judge of the world declare our freedom. "