In the march____the blazing sands they experienced hunger,thirst,and heat.

In the march____the blazing sands they experienced hunger,thirst,and heat.
A.through B.past C.cross D.across

请讲一下为什么，谢谢

in common,in the same in the field 还是in the fields? in the sky or in the air?? The girl in the hat? The world in the future the ghost in the park the wind in the willows working in the sky dying in the sun walk in the sun