Directions: The question is a logical sequence of statements with a missing link, the location of which is shown parenthetically. Choose the alternative that best fits the sequence logically.

The shafts of the mine still bear on their rocky walls the marks made by the pick of the workman who toiled to excavate them. The space between each prop in the underground galleries might be marked as a miner's grave; who can tell what (…), in privations, in unspeakable wretchedness to the family who depended on the scanty wage of the worker cut off in his prime by fire damp, rock fall or flood?