You can use a calculator to calculate for each input x. Alternatively, you may recognize that an input of 0 must have an output of 1 and an input of 1 must have an output equal to the constant e, which is approximately 2.7183. Also, negative input values will have an output of less than 1. As the inputs increase, so will the outputs. Of the four choices, this is the only table of values that fits these conditions.