In the following question, a sentence has been given in passive voice. Out of the four given alternatives, select the one which best expresses the same sentence in active voice.
"A good deal of money will be made by the investment."

The sentence given is passive is "A good deal of money will be made by the investment.". 

We look at the verb " will be made", which is the passive form of the future simple tense, so the active sentence will have the verb as "will make" . The subejct is "A good deal of money" which becomes the object, and the object "the investment." will become the usbejct. 

Hence, the active sentence will be: "The investment will make a good deal of money. ", which is option D. 

Option D is the correct choice.