Suppose a Treacherous Stretch of Road Winds Through Deadman's Canyon

Multiple Choice

Suppose a treacherous stretch of road winds through Deadman's Canyon for 5 miles.A highway department study estimates that better lighting would reduce the traffic fatality rates as follows: $$\begin{array} { c c c } \text { Number of lights } & \text { Estimated deaths per year } & \text { Total installation cost (in millions) } \\0 & 3 & \$ 0 \mathrm {~m} \\1 & 2 & \$ 3 \mathrm {~m} \\2 & 1.5 & \$ 7 \mathrm {~m} \\3 & 1.2 & \$ 12 \mathrm {~m} \\4 & 1 & \$ 18 \mathrm {~m} \\5 & 0.9 & \$ 25 \mathrm {~m}\end{array}$$
Highway engineers have identified one level area in which one light could be located,but due to the rough terrain installation in additional locations is increasingly costly as more light locations are added.The highway department

A) should put the first light in a difficult-to-access location while they still have sufficient budget to cover installation.
B) should apply the low-hanging-fruit principle.
C) must install the maximum number of lights because they have been shown to save lives.
D) should use non-monetary criteria to decide on light location.