Question 15 To retrieve info about a particular teacher whose id entered from keyboard. Not yet answered Marked out of 1.00 a. SELECT teacher_id, teacher_name, department_name FROM teachers WHERE &teacher_id= id; b. SELECT teacher_id, teacher_name, department_name FROM teachers WHERE teacher_id=&id: O c. define number=&no; SELECT teacher_id, teacher_name, department_name FROM teachers WHERE teacher_id= &number: O d. B or C Flag question Question 16 A report that Display info about students who regsitered in the semester 20201. Not yet answered Marked out of 1.00 O a. SELECT r.student_id, s.semester_id from semester s join registration r where s.semester_id = 20201; O b. SELECT r.student_id, s.semester_id from semester s join registration r on s.semester_id = r.semester_id where s.semester_id = 20201; O c. SELECT r.student_id, s.semester_id from semester s join registration r on s.semester_id = r.semester_id; O d. None of the above. P Flag