Explanation

The assertion that "the need for a greater understanding between nations is more today than ever before" reflects the complexities of our contemporary global landscape. In an era marked by unprecedented interconnectivity through technology, trade, and communication, the potential for conflict between nations has escalated alongside opportunities for collaboration. Current challenges such as climate change, pandemics, economic disparities, and geopolitical tensions necessitate cooperative solutions that transcend national borders.

Moreover, the rise of global movements advocating for human rights, environmental protection, and social justice has fostered greater awareness of shared responsibilities among nations. The proliferation of information and the immediacy of communication also mean that events in one part of the world can have swift and profound impacts elsewhere, further emphasizing the need for empathy and understanding.

In contrast, the other options do not align with contemporary realities. The notion that the need for understanding "was always there" (option A) overlooks the unique challenges of today’s interconnected world. The idea that it "is no longer there" (option B) is myopic, as recent global events showcase the increasing importance of diplomacy and collaboration. Lastly, while the need for understanding will always persist (option D), the urgency and depth of that need are particularly pronounced in our current era, making option C the most accurate reflection of the present situation.