$1)$ The following system description is given to you: In particular, students are members of teams. Each team has $2$ or $3$ members. A team has a name. A student has a name, student id and gpa. There are two kinds of students undergrad and grad students. Undergrad students have a department information and grad students have an advisor information. Undergrad students have an undergrad account which has an account id$.$ Grad students have a grad account which has an account name. Every student either grad or undergrad has a single account.Each teamcompletes $0$ to $3$ assignments. Each student takes exactly one midterm test. Each assignment and midterm is assigned a mark. Also, assignment has assignment number information.Give the names of the relations represented in the class diagram with numbers $1$ and $2.$a$)1-$ Aggregation, $2-$Inheritanceb$)1-$ Aggregation, $2-$Aggregationc$)1-$ Inheritance, $2-$Inheritanced$)1-$Inheritance,$2-$ Aggregatione$)1-$Normal, $2-$Normalcompletes