Suppose you lift a suitcase from the floor to a table. The work you do on the suitcase depends on which of the following: (a) whether you lift it straight up or along a more complicated path, (b) the time the lifting takes, (c) the height of the table, and (d) the weight of the suitcase?
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The work done to lift the suitcase from the floor to the table is equal to the change In the PE of the suitcase, which is the weight of the suitcase times the change in height.
It can be concluded that the work done is independent of the path taken to lift the suitcase and time, so the answer under a and b are wrong.