There was a long silence. Into it dropped a quiet bombshell.

"I saw Hannetjie in the shed today," and the failing eyesight blinked rapidly. "I caught him in the act of stealing five bags of fertilizer, and he bribed me to keep my mouth shut."

There was another long silence.

"Prison is an evil life," Brille continued, apparently discussing some irrelevant matter. "It makes a man contemplate all kinds of evil deeds."

Consider the context of the word irrelevant. Brille is discussing the evils of prison as though they are

A. unimportant
B. frightening
C. unusual
D. disconnected