Which sentence best shows correct comma usage?

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.

Read the excerpt from heart of a samurai. the water was so clear, he could see straight to the bottom. a snail was making a path like a shiny ribbon slowly unfurling on the sand. what does the author use the most precise words to describe in the excerpt? the water’s movement the water the snail the snail’s path

In marigolds, what does lizabeth’s parents interaction in the middle of the night mainly reveal about lizabeth’s father?