Question

the \chew\ in chewing gum originates in the tropical rain forest. workmen make an incision in the bark of certain trees and use cups to collect the milky latex that oozes out. latex from the rubber tree is used to make bubble gum. the latex gives the gum the strength and elasticity needed to blow large bubbles that will not break. which of the following best summarizes the passage above?
a. there are many kinds of trees in the tropical rain forests. one kind of tree is the rubber tree
b. workmen usually cut into the bark of a tree to get the latex. then, the latex is used in gum
c. latex makes bubble gum chewy. the latex comes from rubber trees in the rain forest
d. certain trees have this milky latex substance in them. it comes from underneath the bark

Explanation:

The passage mainly talks about how latex from rubber trees (in the tropical rain forest) is used in bubble gum. It describes the process of collecting latex (workmen make an incision in the bark), and that latex gives the gum the strength and elasticity for blowing bubbles. Option C only mentions latex makes bubble gum chewy and where latex comes from (rubber trees in the rain forest), but doesn't cover the whole process related to gum making as comprehensively as needed. Option A is too general about many kinds of trees. Option B is about workmen cutting trees for latex (but the key is latex from rubber trees for gum). Option D is about certain trees having the substance (but not specific to how it's used in gum like the main idea).

Answer:

C. Latex makes bubble gum chewy. The latex comes from rubber trees in the rain forest.