Calculate K for thee following reaction: A + 2 B ⇌ C given the following K values: C ⇌ D + B K1 = 8.53 D ⇌ A + B K2 = 54.57 Answer: would the answer be 6.39 or 0.00214?

A. 6.39
B. 0.00214
C. 12.92
D. 48.18