A population of heights is normally distributed with a mean of $68\mathrm{.}8$ inches and a standard deviation of $4\mathrm{.}5$ inches. Suppose a person is randomly selected from this population. What is the probability that the person's height is greater than $72$ inches?

A$.$

$0\mathrm{.}32$

B$.$

$0\mathrm{.}84$

C$.$

$0\mathrm{.}24$

D$.$

$0\mathrm{.}68$