The correct answer is C. This passage from Shakespeare's work clearly shows a situation in which Richard III uses the soliloquy as a foreshadowing tool to anticipate the reader about his plans for his brother and sister-in-law.
A soliloquy (from Latin solo "to oneself" + loquor "I talk") is a device often used in drama when a character speaks to him- or herself, relating thoughts and feelings, thereby also sharing them with the audience, giving off the illusion of being a series of unspoken reflections. If other characters are present, they keep silent and/or are disregarded by the speaker. Though it should be said that sometimes, depending on the performance, a monologue that is written as a soliloquy, will be addressed directly to the audience. And sometimes it is hard to tell if what is being heard is a monologue, or a duologue or a soliloquy; in which case choosing the right term may be a matter of interpretation.
The best aspect of analysis for this excerpt would be option "C. The use of soliloquy as a tool of foreshadowing in the play."
Richard applies soliloquies in order to let everybody in the audience know what his thoughts are.
In this specific excerpt, Richard explains that he needs George to die previous to Edward, and he also says he wants to marry Warwick's daughter- even after having killed her husband and father.-
