63. IF ASTU = AKLM, which of the following can you NOT conclude as being true?A ST = KM B. ZT=C. TU LMD. ZS = ZK

This is a case of similar triangles. We'll draw the triangles ourselves and compare.
As enumerated in the question,
STU and KLM are similar and angles K = S, L = T and M = U
ST is similar to KL
TU is similar to LM
SU is similar to KM
Therefore, ST is not similar to KM, option A