If an armed robber causes his victim to leave a public street and go into a darkened alley where the robbery can be completed without witnesses and with an increased risk of harm to the victim, the robber is also guilty of

The correct answer is known as "Mugging".

Mugging is one of the robbing methods used by robber towards their victims, so that their victims will be forced to give up their valuables. Brute force is used by robbers in any means necessary, such as punches to get what they want. 

Hey the answer to your question would be B. good luck hoped this helped