Context: Read the text.
In 1968, when the Democratic Party held its convention in Chicago to select a presidential candidate, the United States was at war in Vietnam. Thousands of Americans and Vietnamese had died in the war, giving rise to a growing anti-war movement. President Johnson, a Democrat, declined to run for reelection, in part because of the heavy opposition to his conduct of the war. Just months before the convention, both Martin Luther King Jr. and Robert Kennedy were assassinated, contributing to widespread unrest. Anti-war protesters wanted the Democratic Party to oppose the war, but they were excluded from the convention. This set off violent clashes between police and protesters on Chicago streets. The violence at the convention captured the nation's attention, strengthened the peace movement, and led to reforms in the nominating process.
Which organizational structure does this text primarily use?
A. cause-effect
B. compare-contrast
Identify the correct option from the choices provided and respond with the letter of the correct option.
Answer: A