The correct answer B. Underlining, highlighting, and writing in the margins of reading assignments.
Step-by-step explanation
When you need to study for exams the technique of underlining, highlighting, and writing in the margins is the most appropriate because with this you can better understand and remember the information. Underlining and highlighting helps you identify the key ideas of the text. While writing in the margins helps you to interpret the content of the text or add any information related to it. So, the correct answer is B. Underlining, highlighting, and writing in the margins of reading assignments.