Which of the following does not have a metal-carbon bond:

The correct option is D $Al{\left(O{C}_2{H}_5\right)}_3$
Chemical compounds containing at least one chemical bond between a carbon atom of an organic molecule and a metal.

$C_2{H}_{5}MgBr$ is a $\sigma$-bonded complexes.

$K\left[Pt\right(C_2{H}_4\left)C{l}_3\right]$ contains a bond between carbon and potassium which is a metal.

$Ni(CO{)}_4$ also contains metal-carbon bond as it is itself a metal carbonyl.