The advantage of changing this excerpt to Avery's first-person point of view would be to get more background on why Maritza treats Avery this way.
When we have a different perspective of the story we can have access to much more complete characters this is the real advantage of doing that.
It is not necessary to compare Rosa Parks and Irene Morgan's stories since the characters we are talking about are in fact, Maritza and Avery.
the answer is: C. After 20 years, rusted beams in buildings will cause them to start collapsing.
Chronological structure refers to a technique that put events in proper sequence starting on the earliest time to the latest. The phrase 'after 20 years' indicate the author first explain the situation before the 20 years process occurs and continue in proper sequence to explain what happen next.
The correct answer for the question that is being presented above is this one: "Soviets follow Stalin so eagerly despite his atrocities because under the Stalinist Soviet government, people benefited from some social liberalization. Girls were given an adequate, equal education and women had equal rights in employment, improving lives for women and families."