What help do you need? Have you at least eliminated some choices?
I do have to comment that none of the reasons given follows immediately from what is given, so I'm not entirely happy with the question. But only one choice makes sense.
I was hoping that you had put at least a little thought into the question, rather than depending entirely on others to give you the answer.
Do you not see that with only one length given, you can't possibly use SSS to prove congruence here? That is what I mean by eliminating a choice.
Think about what is required in each case, and whether the needed information is available. (pka has given a more direct hint, but you need to do both kinds of thinking.)
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