Andrew stood beneath the tree as he waited for the rain to stop on his walk home. His older brother, Sam, was getting impatient waiting for him.

In the sentence which story element has the most influence over the story elements

Setting,Theme,Plot, or characters ?

In this sentence, the setting has the most influence over the story elements. The fact that Andrew is waiting beneath a tree for the rain to stop implies that the weather and environment are significant factors in the story.