Answer:
A quatrain.
Explanation: A quatrain is composed of four lines, while a couplet has only two, and an iamb is made up of a pair of syllables (meaning two syllables), with the first being unstressed and the second being stressed. The underlined section is composed of four lines, and the only tern fitting that description would be "quatrain".
Hope this helps! :)
I believe the coefficient of price elasticity of demand in this example would be
<h2>h</h2>
What is the name of the book?
