Use the Following to Answer Questions -(Table: Production of Bagels)Use Table: Production of Bagels

Use the following to answer questions : $$\begin{array}{l}\text { Table: Production of Bagels }\\\begin{array} { l c } \hline \begin{array} { l } \text { Number } \\\text { of Workers } \\\text { Per Period }\end{array} & \begin{array} { c } \text { Thousands } \\\text { of Bagels } \\\text { Per Period }\end{array} \\\hline 0 & 0 \\1 & 5 \\2 & 15 \\3 & 30 \\4 & 42 \\5 & 51 \\6 & 57 \\7 & 60 \\8 & 50 \\9 & \mathbf { 5 7 } \\\hline\end{array}\end{array}$$
-(Table: Production of Bagels) Use Table: Production of Bagels.The marginal product of the third worker is _____ bagels.

A) 9 000
B) 10 000
C) 12 000
D) 15 000