Q. Given the following relation Student (roll no, name, course no, course max. marks, year of study, address) The corresponding 3 NF relations are

• (A) student (roll no, name, year of study, address) course (course no, course max. marks)
• (B) student ( roll no, name, year of study, address) student (roll no, course no) course (course no, course max. marks)
• (C) student (roll no , name, address) year (roll no, year of study) course (course no, course max. marks)
• (D) there are two possible keys and they are dependent on one another