Friends Secondary School is digitizing their students record system. The system must be able to manage personal information about students and teachers. The daily class register that is taken in the morning must be recorded and alerts should be provided if a student is absent twice within the last 10 school days. The system should also provide timetable and report card management. For the report cards, only the total for each subject will be recorded. Based on the Friends Secondary School problem, which is not a valid class candidate if object-oriented decomposition is applied? a. Grade b. Assessment c. Timetable d. Class Register Select all values needed to establish a database connection. a. Name of database management system b. Host and Port of database server c. Type of database d. Name of database Which design pattern can be used to facilitate complex communication between objects? a. Observer Pattern b. Factory Pattern c. Strategy Pattern d. Composite Pattern Select all of the statements that are true. a. A JDBC database connection URL does not contain the username and password of the database user. b. JOOQ and SQL2o are abstractions of the native low level API provided by the Java Development Kit (JDK) that makes database interaction easier.JOOQ, SQL2O and JDBC are abstractions of the native low level API provided by the Java Development Kit (JDK) that makes database interaction easier. c. PostgreSQL is an SQL standard compliant database similar to MySQL d. JOOQ, SQL2O and JDBC are abstractions of the native low level API provided by the Java Development Kit (JDK) that makes database interaction easier