Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct option to each of the questions that follow.

     Modern art is a term used to describe the artworks produced in the period from around 1860 to the 1970 s. It is a time of great change and development in society, and this is reflected in the art of the period.

     One of the key characteristics of modern art is its focus on experimentation and innovation. Artists were no longer interested in simply representing the world as it appeared, but instead they wanted to explore new ways of seeing and understanding it. This led to the development of a wide range of new artistic styles and movements, including Impressionism, Cubism, Surrealism, and Abstract Expressionism.

     Another important feature of modern art is its engagement with contemporary social and political issues. Many artists during this period felt a strong sense of social responsibility and believed that art had the power to bring about social change. They used their work to challenge traditional ideas and values, and to comment on the major events and conflicts of the time. For example, Pablo Picasso's painting Guernica (1937) is a powerful protest to the horrors of war.

     In addition to these changes in style and subject matter, modern art also saw a shift in the way artworks were made and presented. Artists began to experiment with new materials and techniques, such as collage, assemblage, and readymade. They also started to question the idea of the artwork as a unique, precious object, and instead embraced the use of mass production and new media, such as photography and film.

     Today, the legacy of modern art can be seen in almost every aspect of our visual culture. Its influence can be seen in everything from advertising and fashion to design and architecture.

The primary focus of the passage is to _______