Quantitative Labs is relaunching a modified version of a product that failed to reach market in the first attempt.Which of the following should not be included in the capital budgeting analysis?

a. Marketing study expenses for the first attempt

b. R&D investment in the development of the original product

c. Costs incurred in training the sales force to sell the original version of the product

d. All in this list should not be included

please answer with explanation