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While it pins hopes on victims being able to buy a specific amount of bitcoin and successfully transfer the payment -- which some criminal gangs get around by manning help desks providing advice on buying cryptocurrency -- it 's more likely to result in the victim paying up , especially if the figure is just a few hundred dollars .
 buying cryptocurrency: payment method; bitcoin: payment method; victims: victim; the victim: victim
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 buying cryptocurrency: payment method; bitcoin: payment method; victims: victim; the victim: victim