An Airliner with Mass 90 000 Kg Is Flying at 900

An airliner with mass 90 000 kg is flying at 900 km/h at a height of 15.0 km.What is its total energy (kinetic + potential) if the total was 0 when the airliner was at rest on the ground?

A) 5.0E+10 J
B) 3.6E+10 J
C) 1.3E+10 J
D) zero
E) 1.6E+10 J