Explain detailed please.

(1) Alan Co. has $218,000 in taxable income and Bravo Co. has $5,600,000 in taxable income. Suppose both firms have identified a new project that will increase taxable income by $12,000. The additional project will increase Alan Co.'s marginal taxes by and Bravo Co.'s marginal taxes by $ Taxable Income ax Rate I 5% 25 34 39 34 ?- 50.000 75,000 100,000 335,000 335,00110,000,000 50,001 75,001 00,00133 (a) $1,800, $1,800 (b) $4,080, $4,080 (c) $4,080, $4,680 (d) $4,680, $4,080 (e) $4,680, $4,680