Article: The company continued to carefully review submitted titles, giving them scores using a 40-point scale and allocating Nintendo's marketing resources accordingly. Each region performed separate evaluations. Nintendo of America also maintained a policy that, among other things, limited the amount of violence in the games on its systems. One game, Mortal Kombat, would challenge this policy. A surprise hit in arcades in 1992, Mortal Kombat features splashes of blood and finishing moves that often depict one character dismembering the other. Because the Genesis version retained the gore while the SNES version did not, it outsold the SNES version by a ratio of three or four-to-one.

Question: How much did the Genesis version of Mortal Kombat out-sell the SNES version?
three or four-to-one