ABCABCABC is a triangle. AB=5,∠CAB=30∘,BC<5.AB=5,\qquad\angle CAB=30^\circ,\qquad BC<5.AB=5,∠CAB=30∘,BC<5. What length of BCBCBC defines ABCABCABC uniquely? A2.52.52.5B555C222D111E333