Consider the following quantities: distance x, velocity v, acceleration a, and time t. Which of the following are dimensionally consistent?

A. a³ = x²v / t⁵
B. x= vt + vt²/2
C. xa² = x²v/t⁴
D. a= v/t + xv²/2
E. x = t
F. v = 5at
G. x = 3vt
H. v = x / at³