Studying history can teach us valuable lessons about the present in several ways, but the most relevant options from your list would be:
a. The role of technology in modern society - Understanding how technological advancements have shaped societies in the past can provide insight into current developments and their potential future impact.
b. The impact of historic events on different cultures - Examining how historical events have influenced various cultures can help us understand contemporary cultural dynamics and conflicts, as well as foster empathy and awareness of global issues.
c. The birth of the civil rights movement - Studying this pivotal moment in history can offer lessons about social justice, activism, and the ongoing struggle for equality, which remain highly relevant today.
d. The impact of dinosaurs on modern government - This option is not relevant as dinosaurs are not connected to modern governance or societal structures.
In summary, options a, b, and c all provide meaningful lessons that can be applied to understanding the present.