What kind of tree is the oldest tree which has been discovered in the United States?
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A bristlecone pine
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An oak tree
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A giant redwood
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A California sequoia
A
Correct answer
Explanation
The oldest known tree in the United States is a bristlecone pine named Methuselah, aged over 4,800 years, located in California's White Mountains. While giant redwoods and California sequoias are the most massive trees, they're not the oldest. Oak trees, though long-lived, don't match bristlecone pines' extreme longevity in high-altitude environments.