It slowly left after the longest time . There were these people walking down . Kenneth got caught because he was freaking stupid and thought they were runners like us . Turns out , they were KGB .

Based on the preceding passage, choose your answer for question Why is Ken and the narrator afraid of those behind them ?
Available choices:
[i] None of the above choices .
[ii] They are looking to fight runners like Ken and the narrator .
[iii] They are faster runners then Ken and the narrator .
[iv] They are Russian spies .
The answer is:
[iv]