The ______ writers introduced a new theme into literature, that is, the struggle of the proletariat for its rights, which expressed firm belief in the ultimate victory of the suffering people.

A．a picture that you have in your mind, especially about what someone or something is like or the way they look.
B．a technical process in which pictures of the inside of someone’s body are produced.
C．the process of making a scientific or computer model of something to show how it works or to understand it better.
D．the opinion people have of a person, organization, product etc.

A．Isaac Asimov will make new laws to replace the old ones.
B．the Three Laws of Robotics have been invalidated.
C．the book I, Robot was published in Hollywood,
D．Isaac Asimov has shifted his attention to films.