Answer:
B). It underscores his point about the difficulties the nation is facing.
Step-by-step explanation:
The given line is an excerpt from the 'First Inaugural Address of Franklin D. Roosevelt' which primarily focused on revealing the crisis that the nation was facing due to the Great Depression being at its peak. In the context of the given message, Roosevelt aims to highlight the unnerving issue of unemployment in the state which was the supreme cause of the economic crisis. It underscores the 'difficulty of existence' which people were undergoing and toiling day and night in return for a very little amount. Thus, he points out the issues or problems the nation was facing at that moment. However, he motivates his people by asserting that they need to take the issue 'wisely and courageously' to get his people back on work. Hence, option B is the correct answer.