If X Is a Monetary Value (A Payoff If Positive,a $e ^ { x d R }$

Multiple Choice

If x is a monetary value (a payoff if positive,a cost if negative) ,U(x) the utility of this value,and R > 0 is an adjustable parameter called the risk tolerance,then the function U(x) = 1 - $e ^ { x d R }$
Is called

A) Poisson utility
B) exponential utility
C) binomial utility
D) normal utility