Which meaning of the word resignation most closely matches its meaning in the following passage (paragraph 98)?

But the days passed, and expectation gave place to resignation—the hopeless resignation of the old, sometimes miscalled, apathy. Sometimes they hardly exchanged a word, for now they had nothing to talk about, and their days were long to weariness.
Answer choices for the above question

A. noun | the act of retiring or giving up a position

B. noun | acceptance of something undesirable or inevitable

C. noun | a document stating someone’s intent of quitting or standing down

D. none of the above