40 POINTS WILL GIVE BRAINLEST How does the structure of the section “The Investigation” support the purpose of the passage? A Its sequence-structure explains how epidemiologists solved Centerville’s problem. B Its cause-and-effect structure explains why the epidemiologists were able to help Centerville. C Its compare-and-contrast structure explains how epidemiologists are different from other scientists. D Its problem-and-solution structure explains the difficulties epidemiologists encounter in their work.