a) Fact: The region under the standard normal curve that lies to the left of 1.57 has area 0.9418.

Without consulting a table or a calculator giving areas under the standard normal curve, determine the area under the standard normal curve that lies to the right of 1.57.
answer:

b) Which property of the standard normal curve allowed you to answer part a)?
A. Almost all the area under the standard normal curve lies between $-3$ and $3$
B. The standard normal curve is symmetric about 0
C. The standard normal curve extends indefinitely in both directions
D. The total area under the curve is 1
E. None of the above