Mark is advised to consult a financial planner as he will carefully be able to do financial planning when, where and how much to invest as per the desired goals.
Financial Planning is a process of planning the financial goals of an individual by proper assessment of resources and putting forth the steps that are to be performed to achieve those goals.
A financial planner is a qualified expert who can help in making good investments on behalf of someone who does not have expert knowledge or time to do so.
Hence, option D; Mark should consult a financial planner professional for the purpose of beginning his investment journey by financial planning and achieving the goals thereunder.
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