Wind Speed Varies in the First Twenty Meters Above the Ground

Multiple Choice

Wind speed varies in the first twenty meters above the ground. For a particular day, let f(x) =1.2 ln x+8.5 model the wind speed x meters above the ground. What is the wind speed 8 meters above the ground? Round results to the nearest hundredth.

A) 11.07 meters per second
B) 10.58 meters per second
C) 11.00 meters per second
D) -6.00 meters per second