There are many benefits of challenges for example :when u have accomplished them you feel very good and challenges actually challenge you mentally or physically .
A, parallelism. There are no questions, little to no emotion in the sentence, nor are there metaphors
Verbs in the perfect form use a form of "have" or "had" + the past participle. I believe the answer in this case is "have+been+verb"
? i’m a little confused on the question
