A student researching early 20th-century labor movements reads both a 1912 speech by a union leader and a modern economics textbook chapter on the same era. Which statement best explains why a researcher would need BOTH sources to fully understand the topic?
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A
The speech is written in an older style that is harder to understand without additional context.
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B
The speech captures the emotional urgency and specific demands of workers at the time, while the textbook provides broader historical patterns and outcomes.
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C
The textbook is always more accurate because it was written with the benefit of hindsight.
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D
The speech is a primary source, which automatically makes it more reliable than any secondary source.