You will hardly know who i am or what i mean, but i shall be good health to you nevertheless, and filter and fibre your blood. failing to fetch me at first keep encouraged, missing me one place search another, i stop somewhere waiting for you.

which statement best summarizes the theme that these lines suggest?

a) one should keep striving, even in the face of adversity. b) the self is complex and an integral part of nature. c) a clear-eyed vision of one’s strengths is crucial. d) one should always be faithful to one’s friends.