It could be inferred that the word cavity in the paragraph means "rotten part."
Select the word and phrase from the drop-down menus to correctly complete the sentence.
The inferred meaning is as best verified by the context clue

A. to transition the reader smoothly from one idea or moment intime to the nextob. to grab readers' attention and get them interested in the essay'smain topicc. to provide more supporting details about the essay's main ideasor topicod. to sum up the overall point of the essay and make a lastingimpression