The Stem-And-Leaf Diagram Below Shows the Highest Wind Velocity Ever $$\begin{array} { l | l } 6 & 4 \\7 & 23 \\7 & 589 \\8 & 0111344 \\8 & 5568899 \\9 & 0012234 \\9 & 559\end{array}$$

Multiple Choice

The stem-and-leaf diagram below shows the highest wind velocity ever recorded in 30 different U.S. cities. The velocities are given in miles per hour. The leaf unit is 1.0. $$\begin{array} { l | l } 6 & 4 \\7 & 23 \\7 & 589 \\8 & 0111344 \\8 & 5568899 \\9 & 0012234 \\9 & 559\end{array}$$
What is the highest wind velocity recorded in these cities?

A) 9.9 miles per hour
B) 9.5 miles per hour
C) 95 miles per hour
D) 99 miles per hour