Which excerpt best states the central idea of the second paragraph of the dark games?

From clothesline codes to investigation satellites and cyber intelligence, paul b. janeczko exposes two periods' means of true spy stories in u.s. account. from the time when george washington used them to collapse the british, detectives and their systems have aided and hurt america at important instants in history. the right answer would be c

Aand c are my best guess because these make sense to me