解答这道题---**Question Stem:** 13. I = ∫_{π/6}^{π/4} ln(sin x) dx, J = ∫_{π/6}^{π/4} ln x dx, K = ∫_{π/6}^{π/4} ln(tan x) dx. 比较 I, J, K 大小关系 (Compare the relationship of I, J, K in terms of size): **Options:** A. I < J < K B. I < K < J C. K < J < I D. J < K < I

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