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Time Dilation in Special Relativity

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A spacecraft travels at a velocity close to the speed of light for five years. How would the time measured by clocks on the spacecraft compare to the time measured by clocks on Earth?
AThe clocks on the spacecraft would indicate a later time than those on Earth because time speeds up at high speeds.
BThe clocks on the spacecraft would indicate a later time than those on Earth because time slows down at high speeds.
CIt cannot be determined from the information provided.
DThe clocks on the spacecraft would indicate an earlier time than those on Earth because time slows down at high speeds.
EThe clocks on the spacecraft would indicate the same time as those on Earth.
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