Incremental Rate of Return, %, When Compared with Alternative Initial Alternative Alternative Investment, $ Rate of Return, % A B C D 25,000 -35,000 -40,000 -60,000 -75,000 9.6 15.1 13.4 25.4 20.2 28.9 19.7 36.7 25.5 1.5 39.8 24.7 -49.4 28.0 0.6 6(A) If the altermatives are mutually exclusive and the MARR is 15% per year, the alter- native to select is (b) D (c) E (d None of them 6(B) If the alternatuves are mutually exclusive and the MARR is 25% per year, the alter- native to select is (a). A (b) D (c) E (d) None of them