A Government Is Considering Undertaking a Construction Project of an Increasing

Multiple Choice

A government is considering undertaking a construction project of an increasing scale (ranging from 1, 2, 3, to 4) . The estimated marginal costs and marginal bene?ts of each successive scale of the project are given in the
Table below.
$$\begin{array} { | c | c | c | } \hline \text { Project } & \begin{array} { c } \text { Marginal Cost } \\\text { (in millions) }\end{array} & \begin{array} { c } \text { Marginal Benefit } \\\text { (in millions) }\end{array} \\\hline 1 & \$ 8 & \$ 11 \\\hline 2 & 11 & 13 \\\hline 3 & 18 & 17 \\\hline 4 & 28 & 23 \\\hline\end{array}$$ What is the net bene?t of project scale 2?

A) $2 million
B) $3 million
C) $4 million
D) $5 million