Answer:
C. Jane did not work hard enough.
Step-by-step explanation:
In this passage, we learn that a test took place. In order to be able to judge the difficulty of the test, we need to see what the people who took the test think of it. We learn that Jane is confused about the answers and found the test difficult. However, we also learn that Maria believes that the test was not very complicated, and the answers are readily available to her. According to her, this is because she studied for the test. Therefore, we can conclude that Jane did not study hard enough for the test.