Answer:
.e. Project D probably has a higher IRR.
Explanation:
The crossoverrate occurs at 12% below this mark Project C yield better
while above this mark Project D yield better.
If both have the same IRR then, are identical.
While, if one has a higher IRR there is point in difference based on the initial cash flow and the subsequent period which makes them less atractive than the other (up to the crossover rate) after this rate, the other porject can keep up as the other increases his value while the other start decreasing it as it is being discounted above his IRR.