b$.$ Explain the observations made for the reaction between the Pt complex shown

in Figure $4$ below and methyl iodide $[$note that the shown reaction is not

stoichiometric$].$ Formulate the key intermediates along with the mechanistic

steps in support of your answer. What is the predicted distribution of the

$H_{3}CC{D}_3$ and $H_{3}CC{H}_3$ products? Explain your answer.

Figure $4$