The Distance $d$ In Miles That Can Be Seen on the Surface of the Surface

Multiple Choice

The distance $d$ in miles that can be seen on the surface of the ocean is given by $d=1.2 \sqrt{h}$ , where $h$ is the height in feet above the surface. How high (to the nearest foot) would a platform have to be to see a distance of 16.5 miles?

A) $138 \mathrm{ft}$
B) $189 \mathrm{ft}$
C) $326 \mathrm{ft}$
D) $272 \mathrm{ft}$