A next of kin can be a parent or guardian to more than one student. The primary key of the next_of_kin table is nok_id. The primary key of the student table is student_id. Choose the correct option to indicate which is the foreign key and which table it should be reside in. nok_id is the foreign key. It should be placed in the student table. student_id is the foreign key. It should be placed in the next_of_kin table. nok_id is the foreign key. It should be placed in the next_of_kin table. student_id is the foreign key. It should be placed in the student table.