Read this excerpt from Jack London's "The Law of Life," in which Koskoosh and his son converse: "Is it well with you?" he asked.

And the old man answered, "It is well."

"There be wood beside you," the younger man continued, "and the fire burns bright. The morning is gray, and the cold has broken. It will snow presently. Even now is it snowing."

What is the implicit meaning behind the son's questions?

He is asking if his father is well enough to travel.
He is asking his father to let him leave.
He is asking if his father is ready to die.
He is asking if his father is ready to go.