Sandra was quite overwhelmed by her final exam. many of the test questions were difficult to answer, and she felt like she would not be able to complete the exam. what would you suggest sandra do? a. sandra should guess answer “c” on all of the questions, because teachers use answer “c” as the correct answer most often. c. sandra should leave the questions she is unsure about blank because unmarked questions are never counted wrong. b. sandra should answer the questions in numerical order so that she does not skip any. it will not matter if she doesn’t finish in time. d. sandra should answer the easy questions first. then she should go back and reevaluate the more difficult question. select the best answer from the choices provided a b c d answer is d