Use the Following to Answer Questions -(Table: Total Product of Labour at Debbie's Bakery)Use Table: Total

Use the following to answer questions : $$\begin{array}{l}\text { Table: Total Product of Labour at Debbie's Bakery }\\\begin{array} { l c } \begin{array} { l } \text { Quantity of Labour } \\\text { (workers) }\end{array} & \begin{array} { c } \text { Total Product of Labour } \\\text { (cakes per worker) }\end{array} \\\hline 0 & 0 \\1 & 3 \\2 & 10 \\3 & 16 \\4 & 21 \\5 & 25 \\6 & 28\end{array}\end{array}$$
-(Table: Total Product of Labour at Debbie's Bakery) Use Table: Total Product of Labour at Debbie's Bakery.Debbie can sell cakes at $10 each.If Debbie must pay each worker $40 per day,how many workers will she hire to maximize profit?

A) 3
B) 4
C) 5
D) 6