A simulation model was developed for risk analysis. The resulting $3,000$ trials for $4$ different scenarios are summarized below. Determine which scenario is least risky, if possible.

$\backslash$table$[[,$Scenario A$,$Scenario B$,$Scenario C$,$Scenario D$],[$Expected Value,$147000,130000,170300,188000],[$Standard Deviation,$47000,43000,48500,25950]]$