【单选题】

In a "primary succession", what makes it possible for mosses to take root
A．The type of rock.

B．The amount of sunlight.
C．The amount of moisture.
D．The effect of lichens.

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根据网考网移动考试中心的统计，该试题：

23%的考友选择了A选项

8%的考友选择了B选项

10%的考友选择了C选项

59%的考友选择了D选项

In a "primary succession", what makes it possible for mosses to take rootA．The type of rock.