Question id 15 - Meteorology - FAA Drone Quiz

Meteorology - Louisville Airport is an uncontrolled airport surrounded by a magenta-shaded circle in the sectional charts. What does this magenta circle indicate?
Class G airspace up to 400 feet
Class E airspace from the surface up to 700 feet
Class E airspace from 700 feet

Training tests and timed exam simulations FAA Drone Quiz