Answer:
Critical readers expect valid evidence to be given in the proposition itself, or at least referenced. Analytical readers intend to understand how a speaker has constructed a proposition, and for what purpose.
Answer: A friend is a person with whom I may be sincere.
Explanation:
The speaker says that a friend is someone they can be sincere with. This means that to the speaker, the underlying advantage of friendship is sincerity. Friends can be honest and truthful with one another more than others and so it can be said that honesty holds a friendship together.
This is why honesty is important in a friendship. If friends cannot be honest with one another, the friendship is fractured and according to the speaker, cannot even be referred to as friendship.
The theme is the moral or the lesson of the story. After reading the story, which of the answers gives you a lesson that is universal (can apply to anyone) and fits with the story. For example, one could say that the moral of Finding Nemo is "always listen to your parents as they know best". No specific details like names or places are given in the theme.