And since he had found out he could n't do that on his own , he knew if his team arrived , they would be able to make a more thorough search of the City and the train station . One down . Two to go . Sasuke 's light foot steps echoed more than he would have liked . He generally barely made any noises just walking , but this place threw him off some .

Question: Why was Sasuke unable to search the town thoroughly ?
Answer: He could only do the work of a single person .He could only search on foot .None of the above choices .He did n't know the city .