Why does context matter when studying an authors word choice

When developing a written argument, what best explains why an author would use a graph as a source? a graph gives numeric evidence visually. a graph is easy to read and understand. a graph is colorful and will engage the reader. a graph can be used to refute an argument.

Which sentence in this excerpt from leo tolstoy’s the death of ivan ilyich suggests that ivan ilyich felt his family and friends didn’t understand him and neglected him?

Yosemite has spectacular scenery and which has half-time bears. how do i write i. parallel structure?