It refers to secrets people have or similar to the phrase "Coming full circle" by Shakespeare. Basically, the dark secrets people have will "come to light" or be revealed in time, no matter what it is. A self fulfilling prophesy you might say.
B.When
the boy taunts John, it shows that the boy is jealous of John’s
intelligence.
In this excerpt, John portrayed that his intelligence and
smarts overpowers the basic drives of the boy to poor sex and intimidation.
Because of this, the boy acts on to John taunting him to feel stronger .
A revivalist preacher are best described as enthusiastic speakers. The correct answer is B, enthusiastic speakers.