If an "X" value is located at a Z value of -1.37, what is the probability (area under the curve) between this value and the mean?

If an "X" value is located at a Z value of -1.37, what is the probability (area under the curve) between this value and the mean? In other words, how much of the population resides between these two values; the mean and the X value? Choose from answers below.

a) 0.415

b) -0.415

c) 0.35

d) 0.085