Concept:An adverb of degree can modify the adverb early.Solution:"Eugenia got here very early" means extremely early, which fits the sense: among all the participants, she arrived well ahead of time."Only early" and "often early" do not make sense with the single past action "got here".Key point: "Most early" is not the standard superlative; the superlative of early is earliest ("Eugenia got here earliest").Answer:Option A (very)