A Plane Flying Horizontally at an Altitude of 1 Mi $520$

Multiple Choice

A plane flying horizontally at an altitude of 1 mi and a speed of $520$ mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station.

A) $\approx 455 ~\mathrm{mi} / \mathrm{h}$
B) $\approx 570~ \mathrm{mi} / \mathrm{h}$
C) $\approx 495~ \mathrm{mi} / \mathrm{h}$
D) $\approx 670~ \mathrm{mi} / \mathrm{h}$
E) $\approx 450~ \mathrm{mi} / \mathrm{h}$