Use of a/an with parentheticals?

This morning I was confronted with a grammar question for which I just don't know the answer. Consider the phrase "an essential truth;" now put "essential" in parentheses. Is the indefinite article supposed to be "an" or "a" in that phrase? I'm stumped; my advice was to remove the parentheses entirely, so the phrase remains… Continue reading Use of a/an with parentheticals?