A Rock Is Dropped from the Top of a Vertical

Multiple Choice

A rock is dropped from the top of a vertical cliff and takes 3.00 s to reach the ground below the cliff.A second rock is thrown vertically from the cliff,and it takes this rock to reach the ground below the cliff from the time it is released.With what velocity was the second rock thrown,assuming no air resistance?

A) 4.76 m/s upward
B) 5.51 m/s downward
C) 12.3 m/s upward
D) 4.76 m/s downward
E) 12.3 m/s downward