Fill blank (x).

Directions: Study the following passage with some numbered blanks and answer the question that follows.

The Earth constricts. We imagine ourselves to be ____(i)____ in solitary confinement, ___(ii)____ crude coded messages on the ___(iii)____ wall and hoping for an answering tap - without which we stare at the ___(iv)____ possibility that we are truly, absolutely ___(v)____. Such an abyss may be infinitely more ___(vi)____ than the assumption of human inferiority, or may argue, conversely, for the divine ____(vii)____ and therefore preciousness of the human enterprise. The ____(viii)____ with extraterrestrial phenomena may reflect an ___(ix)____ of secrets and ___(x)___ of Earth and of earthy behaviour.