According to Sigurgeirsson, how can the growing of trees influence Iceland？A．The image of

According to Sigurgeirsson, how can the growing of trees influence Iceland？

A．The image of Iceland is changed.

B．The land is fully made use of.

C．The land is better preserved than before.

D．It"s no longer necessary to import wood.

请帮忙给出正确答案和分析，谢谢！