<span>The perfect form is the verb tense used to indicate a completed, or "perfected," action or condition. Verbs can appear in any one of three perfect tenses: presentperfect, past perfect, and future perfect. Verbs in the perfect form use a form of "have" or "had" + the past participle.</span>
The t-shirt that they give only to people who finish is a big reason that so many people take up the challenging race.
This paraphrase presents the same information as in the sentence, but since it should be a bit more of a summary, it takes out the specific detail of how many people actually run the race, which can just be paraphrased into 'so many'.
Just took this :)
Transitional Phrases show connections between ideas. Explanation, I hope, is obvious. Organization of ideas, like transitional phrases, show objects' and ideas' relation to others.
Process of elimination means it's
D. Hand-drawn illustrations. (Also, the specificity of "hand-drawn", illustrations is odd, and moreso when you consider computer-generated illustrations have a higher guarantee of accuracy)
We would need the following