Question: The first ionization energy of sodium is 496 kJ/mol, and its atomic radius is 186 pm.
A: 160 pm, 737 kJ/mol
B: 86 pm, 398 kJ/mol
C: 235 pm, 523 kJ/mol
D: 240 pm, 1200 kJ/mol
Please eliminate two incorrect options first, then think it step by step and choose the most proper one option. Your entire response should be in English, and in all capital letters.
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