A. dp/ρ + g.dz + v.dv = 0
B. dp/ρ - g.dz + v.dv = 0
C. ρ.dp + g.dz + v.dv = 0
D. ρ.dp - g.dz + v.dv = 0
Please do not use chat terms. Example: avoid using "grt" instead of "great".