If X, the Time (In Minutes)to Complete an Change Job $\le$

If x, the time (in minutes) to complete an change job at certain auto service station, is uniformly distributed over the interval 20 to 30, inclusively (20 $\le$ x $\le$ 30) , then the probability that an oil change job is completed in less than or equal to 22 minutes, i.e., P(x $\le$ 22) is __________________.

A) 0.200
B) 0.300
C) 0.000
D) 0.250
E) 1.000