Consider the below ERD in Figure 03 of Student Enrolment system and answer the below questions. Fname Lname Student N um Date of Enrollment NID Student Enrolls Enrollment Course na me Address Bdate Time CC Lecture Date Subject Lecturer ame Lectuere ID Subject_co de L LastName FirstName Lecturer Lectures Subjects Subject Unit) L_email Subject_u dsc Address Figure 03 a List the strong (non-weak) entity types in the ER diagram. b. Is there a weak entity type? If so, give its name, partial key, and identifying relationship. What constraints do the partial key and the identifying relationship of the weak entity type specify in this diagram? d. List the names of all relationship types, and specify the (min, max) constraint on the participation of an entity type in a relationship type. Justify your choices. e. List concisely the user requirements that led to this ER schema design