Amathematics competition uses the following scoring procedure to discourage students from guessing (choosing an answer randomly) on the multiple-choice questions. for each correct response, the score is 7. for each question left unanswered, the score is 2. for each incorrect response, the score is 0. if there are 5 choices for each question, what is the minimum number of choices that the student must eliminate before it is advan- tageous to guess among the rest? (a) 0 (b) 1 (c) 2 (d) 3 (e) 4