Final answer:
The line that contains imagery appealing to the sense of sight is "Into the milk-pail red as blood!".
Step-by-step explanation:
The line that contains imagery that appeals most to the sense of sight is:
"Into the milk-pail red as blood!"
This line creates a vivid image in the reader's mind by using the color red to describe the milk-pail, appealing to the sense of sight.
Learn more about Imagery in poetry