Part A: D.
Meaning of allusion:allusion refers to something that is in both reality and fiction. for example, a book mentions Mona Lisa. it is an allusion because it's referring to something that is in reality in a book.
Part B: A
Answer: I believe it is the last line
Explanation:
Old :
Spiritual, mental wellbeing, health, the past, nobility.
Settled:
Strong, powerful, stability, control (of things), relaxed, conscious.