It is the exercise.cause the title is exercise
Maybe you should ask some real English questions .-.
Crops withered, curled up, then died under the thirsty sun <span><span>a hurricane came out of the east snapping their roots and tearing them out of the earth a voice that seemed to rumble out of the earth itself prodding each other and giggling, went back to the house These sensory images both visual and audible were used by the author to impress the reader with the devastation of the scene.
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The underlined pronoun <em>who </em>is used as a D) subject in this sentence. The subject is the doer of the action, the one who left mittens on the ground, in this case.
B. some comments sense tips for improving your writing