One song is "On the Road Again" It represents that Lennie and George are traveling for a new beginning, working towards their dream and leaving the past behind.
Second song is "Way Out Here" It represents that they are the new guys and they are not welcomed with the others yet.
A - Samantha returned the book herself.
When using the active voice, the subject comes before the verb with the action (Samantha returned). Passive sentences have a noun with the action being done TO them (cake was made, buildings were built, coach was pushed)
I’m not sure of an answer this isn’t my cup of tea