Multiple Choice
What is the typical duration of a gamma-ray burst?
A) several days, indicating a size much smaller than the distance from the Earth to the nearest star beyond the Sun
B) less than a couple of minutes, indicating a source smaller than Mercury's orbit
C) up to about 1 hour, indicating a source less than half the size of the solar system
D) several hours, indicating a source somewhat larger than the solar system
Correct Answer:

Verified
Correct Answer:
Verified
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