How does the author develop the central idea across these excerpts?

Alvarez shows how, throughout her life, she learned about the dictatorship from her parents' fear of and responses to it.
Alvarez wrote about life under the dictatorship, even though doing so ruined her relationship with her mother.
Alvarez shows how her lifelong fascination with her parents' life under the dictatorship was the basis for her writing.
Alvarez shows how her mother counted on her to someday write a novel about the dictatorship.