In which of the following sentences from "into the wild" is the author's tone evident?
a) careful searches of cliffs near and far, however have failed to unearth any human remains
b) Vegetation is lean
c) Everett was born in Oakland California, in 1914, the younger of two sons raised by Christopher and Stella Ruess.
d) Ruess was just as romantic as McCandless, if not more so, and equally heedless of personal safety