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The correct answer is "a technique used in writing or speaking that is intended to persuade". There are numerous ways of doing this, however the most famous is using the three rhetorical techniques used by Cicero, the ethos, logos, and pathos.
A bar code symbol typically consists of five parts: a quiet zone, a start character, data characters (including an optional check character), a stop character, and another quiet zone.
This is my best guess
4 in many school activites is what they are invovled in describing the verb