38. Why does the author mention primeval heat (lines 19-20) ?
(A) To provide evidence that Jupiter is older than the Sun
(B) To provide evidence that Jupiter is older than the other planets
(C) To suggest a possible explanation for the number of satellites that Jupiter has
(D) To suggest a possible source of the quantity of heat that Jupiter gives off

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統計： A(0), B(2), C(3), D(14), E(0) #803487