Correct option is B
Scanning
Scanning is a reading technique used when you're looking for specific information, such as dates, names, or figures. It involves moving your eyes quickly over the text until you find the specific piece of information you need. When Raghavi is reading the train timetable to book tickets for her trip to Jaipur, she is likely scanning for specific times, platform numbers, or train names, making scanning the most appropriate option.