请教OG11-39-62(the second part)

the content of passge:

Has the predicted twin-peaked activity been observed for the actual yearly GEminid meteor shower? The Geminid data between 1970 and 1979 show just such a bifurcation, a secondary burst of meteor activity being clearly visible at an average of 19 hourse (1,200,000 miles) after the first burst. The time intervals between the bursts suggest the actual Geminid stream is about 3,000 years old.

请问下题为什么选C，能帮我翻译一下上段内容

It can be inferred from the last paragraph of the passage that which of the following must be true of the Earth as it orbits the Sun?

(A)  Most meteor streams it encounters are more than 2,000 years old.

(B)   When passing through a meteor stream, it usually passes near to the stream’s center.

(C)  It crosses the Geminid meteor stream once every year.

(D)  It usually takes over a day to cross the actual Geminid meteor stream.

(E)   It accounts of msot of the gravitaitonal perturbation affecting the Geminid meteor stream.