Jurisdiction M Imposes an Individual Income Tax Based on the Following

Jurisdiction M imposes an individual income tax based on the following schedule. $\begin{array}{rr}\text { Rate }&\text { Income bracket }\\58 & \$-0-\text { to } \$ 50,000 \\+88 & \$ 50,001 \text { to } \$ 200,000 \\+128 & \$ 200,001 \text { and above }\end{array}$ Which of the following statements is true?

A) If Mrs. Hall's taxable income is $227,000, her average tax rate is 12%.
B) If Mr. Poe's taxable income is $41,200, his marginal tax rate is 8%.
C) If Ms. Kaye's taxable income is $63,800, her marginal tax rate is 8%.
D) None of the choices are correct.