Read the excerpts from the article Amazing Plants:

Excerpt 1

Some plants have unique ways of communicating with each other. When animals begin to graze on the African acacia tree, the acacia releases a gas that drifts on the wind to tell nearby acacia trees that there is danger. The acacia then releases a toxic chemical into its leaves that makes them inedible. Other acacia trees in the area do the same when they detect the danger-signal gas. Animals that continue to graze on the acacia risk becoming ill.

Excerpt 2

If you were walking through the rain forest at the perfect time, you might just be lucky enough to catch the smell of rotting meat. The Amorphophallus titanum, or corpse flower, is a rare plant that produces one of the largest blooms in the world. The long central spike can reach 20 feet in height, and the leaf-like petals can reach a width of 12 feet. The flower gives off the powerful smell of rotting meat in order to attract the flies that pollinate it.

Why does the author use the chosen text structure for the excerpts?

Group of answer choices

Excerpt 1 uses a comparison structure to explain the similarities between acacia trees and grazing animals, and Excerpt 2 uses a comparison structure to explain the similarities between the corpse flower and rotting meat.

Excerpt 1 uses a problem and solution structure to explain the grazing dilemma acacia trees face and possible solutions, and Excerpt 2 uses a problem and solution structure to explain the issue of the corpse flower smelling bad.

Excerpt 1 uses a cause and effect structure to explain how acacia trees communicate danger, and Excerpt 2 uses a cause and effect structure to explain how the corpse flower releases a scent to attract an insect for pollination.

Excerpt 1 uses a chronological structure to explain the order in which acacia trees release gas, and Excerpt 2 uses a chronological structure to explain the order in which the corpse flower grows its bloom.