You are travelling in an airplane at a speed of 900 km/hr. You have a quarter which you flip up into the air. Which statement is true?

A. According to the frame of reference of another passenger, your speed is
0 km/hr.

B. According to the frame of reference of a person on the ground, your speed is 0 km/hr.

C. The quarter you flip in the air will land a few seats behind you because you are moving at 900 km/hr.

D. According to the frame of reference of a person in an airplane travelling in the
opposite direction at a speed of 900 km/hr, your speed is 0 km/hr.