Which is the best approximation of the density a buoy would need to be to test water conditions at a depth of 2000 meters?
A. 1.020 g/cm$
B. 1.025 g/cm$
C. 1.030 g/cm$
D. 1.035 g/cm$
E. 1.040 g/cm$
F. 1.045 g/cm$
G. 1.050 g/cm$