Data collected over a long period of time show that the length of time x to complete a particular college entrance test is normally distributed with an average of 125 minutes and a standard deviation of 18 minutes. What is the probability that a student taking this test will finish in 100 minutes or less? Round your answer to 4 decimal places. Remember to round all z values to 2 decimal places.
A. 0.9177
B. 0.7538
C. 0.0823
D. 0.1566
E. None of the above