Which sentence best supports the meaning of the word inessential ?

A) “I was set free, because my greatest fear had been realized, and I was still alive, and I still had a daughter whom I adored, and I had an old typewriter and a big idea.”

B) “The knowledge that you emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive.”

C) 'I stopped pretending to myself that I was anything other than what I was, and began to direct all my energy into finishing the only work that mattered to me.”

D) “Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.”