Exhibit 5-2 Price and Quantity Demanded Data -Using Exhibit 5-2, What Is the Price Elasticity of Demand

Multiple Choice

Exhibit 5-2 Price and quantity demanded data $$\begin{array} { | c | c | } \hline \text { Price } & \text { Quantity Demanded } \\\hline 5 & 20 \\4 & 25 \\3 & 30 \\2 & 35 \\1 & 40 \\\hline\end{array}$$
-Using Exhibit 5-2, what is the price elasticity of demand when the price falls from five dollars to four?

A) 1.
B) 1.25.
C) 0.8.
D) 2.0.
E) 0.4.