Table 5-2
​ -Refer to Table 5-2

Multiple Choice

Table 5-2
​
$$\begin{array} { | c | c | } \hline \begin{array} { c } \text { Price } \\\text { (Dollars per unit) }\end{array} & \begin{array} { c } \text { Quantity Demanded } \\\text { (Units) }\end{array} \\\hline 100 & 0 \\\hline 80 & 50 \\\hline 60 & 100 \\\hline 40 & 150 \\\hline 20 & 200 \\\hline 0 & 250 \\\hline\end{array}$$
-Refer to Table 5-2. Using the midpoint method, if the price falls from $80 to $60, the price elasticity of demand is

A) zero.
B) unit elastic.
C) inelastic.
D) elastic.