. Consider the ER diagram shown in Figure 3.22 for part of a BANK database. Each bank can have multiple branches, and each branch can have multiple accounts and loans. a. List the strong (nonweak) entity types in the ER diagram. b. Is there a weak entity type? If so, give its name, partial key, and identifying relationship. c. 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 each participation of an entity type in a relationship type. Justify your choices.

Use this diagram to answer the following questions. It is found in your textbook on page 117. Name Sex Address Ssn PERSON Birth_date Salary Major_dept EMPLOYEE ALUMNUS STUDENT Degrees Year Degree Major d Percent_time STAFF FACULTY STUDENT ASSISTANT GRADUATE STUDENT UNDERGRADUATE STUDENT Position Rank Degree_program Class Project Course RESEARCH_ASSISTANT TEACHING ASSISTANT Please check all of the statements which are correct