Even though option D is also related to Modernism and could be related to the excerpt, option C seems to be the correct one: It conveys the idea of isolation from modern life.
Modernist were called "the lost generation" because of their search for meaning among the fragments of modern life. In the excerpt, the words "lonely men" seem to address the theme of isolation and alienation in society. While everyone seems to have a role to perform in modern life, that does not mean they have found their true identity. Some sort of value seems to have been lost and, with it, men lost themselves. Modernism is characterized by the search of such value.
Positive thinking is an attitude that pushes you to expect good and desired results. Power of positivity helps you in creating and transforming energy into reality. Positive mindset helps you to seek happiness, health and a happy ending regardless of the situation. Lots of successful people have recognized the positivity as the key to success.
When driving during daytime, it reduced visibility such as rain, smoke and fog.
