Number 1 is a phrase and number 2 is clause 3 is also a clause and A clause is a group of words that consists of a subject and a verb. ... A phrase is a group of words that does not consist of a subject and a verb.
I would say noun clause, but seeing as that is not an option, appositive?
The simile “lay down / to sleep like a snow-covered road / winding through pines” refers to death. To be more exact, to death of the author's father. The message that author wanted to convey is to show how people can pass through their loss and to represent all the loneliness of death, comparing it to the loneliness of the winter road, empty and deserted.
