Please answer the questions with detail so that i can learn how it was solved. Thank you

Question 1: A quiz with ID independent multiple choices questions was given to the students. Each question has 5 possible answers from which only one is correct. a) This is a binomial experiment, please state the reasons why? b) [fa student is guessing every question, what is the probability that hefshe will guess exactly 6 questions correctly? 0) If a student is guessing every question, what is the probability that hefshe will guess at least 8 questions wrong? d) If guessing the correct answer is considered a success, how many questions should one expect to guess correct