Hello , I ran ADMIXTURE software ( population structure) with cross-validation test and got the following result. From this result which value I should use for K (3 or 4)?

https://wcmq.box.com/s/nw284b0n80a5cji5i3jjb4u3cywzxxno

Pop : Std.error
(K=1) : 0.4946
(K=2) : 0.46638
(K=3) : 0.45423
(K=4) : 0.45242
(K=5) : 0.45216
(K=6) : 0.4522
(K=7) : 0.45622
(K=8) : 0.46228