Question: What are the dimensions of a 'letter size' piece of paper?
A: 3 1/2  5 inches
B: 5  10 inches
C: 8 1/2  11 inches
D: 11 17 inches
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option. Provide your response in exactly 7 paragraphs (separated nearby paragraphs with 3 aterisk symbols ***).
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