Read the excerpt below.

Katherine Johnson was born on August 26, 1918 and her genius was evident from a young age. She began high school when she was just ten years old and graduated from college in 1937 at the age of eighteen with two degrees. After college, Katherine became a teacher until she left the profession to go back to school for a master's degree in mathematics. She did not finish her degree. Instead, she got married and started a family.

How does the author organize information in this passage to create a clear central idea?

Cause and effect
Chronological
Compare and contrast
Problem and solution