The number of leasable square feet of office space available in a city on any given day has a normal distribution with mean 640,000 square feet and standard deviation 18,000 square feet. What is the interquartile range for this distribution?
(A)652,000 - 628,000 (B)658,000 - 622,000 (C)667,000 - 613,000 (D)676,000 - 604,000
A