Bill takes a loan of $9,000.00 at a 8% simple interest rate for 6 years.
 a. How much interest will he pay after 2 years?
 b. How much interest will he pay in total for the loan?
 A. $720.00; $3,600.00
 B. $1,408.00; $4,224.00
 C. $36,000.00; $12,000.00
 D. $1,440.00; $4,320.00