Answer: The first option is the best summary of the excerpt.
Explanation: The second option doesn't quite describe the most important point of the excerpt: what did Pangu's birth and death result in? The third option covers the death of Pangu, but it doesn't mention the significance of the egg. The first option touches all bases: Pangu was born from an egg, which released shells that formed the sky and the earth. When he died, he became the world and its elements. Therefore, the first option summarizes the excerpt the most thoroughly.
