+71 Holly is taking a multiple-choice reading test. She has decided to guess on questions 3 and 7. On each question, there are four worded choices plus an "all of these" choice and a "none of these" choice. What is the probability that she answers question 3 incorrectly and question 7 correctly?
A. 1/3
B. 5/36
C. 3/16
D. 4/25
