问题详情

For every hour that Marcia spends making frames in the second week of December each year, she donates $3 from that week’s profit to a local charity. This year,Marcia made 4 large frames and 2 small frames in that week. Which of the following is closest to the percent of that week’s profit Marcia donated to the charity？
A.6%
B.12%
C.14%
D.16%
E.19%请帮忙给出正确答案和分析，谢谢！