The sentences that contain logo are the first and second " 9 out of 10 professionals rate our site as user-friendly. Should you need assistance, 300 tech-support workers are on hand, so you will never be placed on hold". Logo is a literary device that appeals to the reason by the use of logic, statistics or facts.
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The theme he is using is <span>soliloquy im doing an assessment on that too and that is one of my questions as well</span>