The correct answers are A) It lasted for more than 400 years and didn’t face any natural disasters and B) All areas of life, including literature, technology, economy, science, and philosophy, grew and thrived.
The two statements about the Han dynasty that help explain why it was the golden age of China were the following: "It lasted for more than 400 years and didn’t face any natural disasters" and "All areas of life, including literature, technology, economy, science, and philosophy, grew and thrived."
The Han dynasty started in 206 BC an ended in 220. There were 400 years of growth and prosperity to the degree that some historians called it the Golden Age of China. Science, arts, and inventions were developed during this dynasty. The invention of paper changed the way China communicated. There were also medical innovations such as acupuncture. And in agriculture, crop rotation innovated the growth of crops.