Exhibit 11-2 Labor and Output Data -In Exhibit 11-2, If Product Price Is Fixed at $8

Exhibit 11-2 Labor and output data $$\begin{array} { | c | c | } \hline \text { Labor } & \text { Output } \\\hline 0 & 0 \\1 & 20 \\2 & 45 \\3 & 80 \\4 & 100 \\5 & 110 \\\hline\end{array}$$
-In Exhibit 11-2, if product price is fixed at $8, the MRP of the 5th worker is equal to:

A) $50.
B) $80.
C) $10.
D) $100
E) $160.