One of two identical twins becomes an astronaut, while the other becomes a real estate broker. The astronaut embarks on high-speed space travel and is gone for several years. Upon the astronaut's return, the two twins reunite and compare their physical appearances. The result will be that

A. both have aged the same.
B. the real estate broker has aged less.
C. the astronaut has aged less.


Answer: C

Physics & Space Science

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