The position of a particle is r(t) = (4t²x 4y-4.5tz)
Options:
A) r(t) = (4t², 4y - 4.5tz)
B) r(t) = (4t²x, 4y - 4.5tz)
C) r(t) = (4t²x, 4y)
D) r(t) = (4t²x - 4y, -4.5tz)