four investment alternatives (a, b, c, and d) are under consideration. the present worth (pw) for each alternative is $187,500, $300,000, $225,000, and $262,500. the payback periods (pp) for the alternatives were 2, 3, 1, and 4 years. the risk levels (rl) associated with each alternative are quite different, with a being most risky, d being least risky, and b and c being equally risky. the weights for pw, pp, and rl have been assigned as 35, 40, and 25. using the weighted factor comparison method, which alternative would be recommended