Sword or axe. . . . . . . . . . . . .
D. is wrong. It should be "One hero in the animation field is Mel Blanc, the voice behind many cartoon characters." because the information after Mel Blanc is not necessary to the sentence. It's just extra, so you need a comma.
Answer:
By using Modernist themes instead of doubt and mystery ideas.
Explanation:
Robert Frost's poetry represent a "transition" toward Modernist literature due to movement from doubt and mystery ideas to Modernist themes which means he uses Modernist themes instead of doubt and mystery ideas. Robert Frost's poetry moved away from ideas of doubt and mystery into Modernist themes. If the structure is not Modernist so it follow traditional themes wholeheartedly so we can conclude that in Robert Frost's poetry transition occurs.