Li Bai wrote in the poem "Looking at Tianmen Mountain": "The green hills on both sides of the strait are opposite, and the sails are alone." Among these two beautiful poems, the author chose one after

Li Bai wrote in the poem "Looking at Tianmen Mountain": "The green hills on both sides of the strait are opposite, and the sails are alone." Among these two beautiful poems, the author chose one after another. (1) "The green mountains on both sides of the strait are opposite", the research object is "green mountains", the movement state is "out", and the green mountains are moving, relative to the ship;

(2) "A solitary sail will eventually have a sunrise", the research object is "a solitary sail", the motion state is "coming", and the ship is moving, relative to the ground (or the green hills on both sides);

So choose a.