Add Write a Mixed Numeral for the Answer $26 \frac{8}{21}$ B) $27 \frac{1}{2}$

Add. Write a mixed numeral for the answer.
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A) $26 \frac{8}{21}$
B) $27 \frac{1}{2}$
C) $28 \frac{8}{21}$
D) $27 \frac{8}{21}$