A Plane Flying Horizontally at a Speed of 50 M/s

Multiple Choice

A plane flying horizontally at a speed of 50 m/s and at an elevation of 160 m drops a package,and 2.0 s later it drops a second package.How far apart will the two packages land on the ground if air resistance is negligible?

A) 100 m
B) 160 m
C) 180 m
D) 320 m