How are the waterfall and agile methods of software development similar? Both methods allow project teams to complete small portions of the entire project in small sprints and work on different steps simultaneously.

Both methods focus on development rather than planning, in order for project teams to work more quickly.

Both methods have project teams work on one step at a time and move on when the previous step is completed and approved.

Both methods require documentation so project teams stay on track and keep control over what version of the project they are working on.

Consider the following statements: struct nametype{string first; string last; }; struct coursetype{string name; int callnum; int credits; char grade; }; struct studenttype{nametype name; double gpa; coursetype course; }; studenttype student; studenttype classlist[100]; coursetype course; nametype name; mark the following statements as valid or invalid. if a statement is invalid, explain why.a.) student.course.callnum = "csc230"; b.) cin > > student.name; c.) classlist[0] = name; d.) classlist[1].gpa = 3.45; e.) name = classlist[15].name; f.) student.name = name; g.) cout < < classlist[10] < < endl; h.) for (int j = 0; j < 100; j++)classlist[j].name = name; i.) classlist.course.credits = 3; j.) course = studenttype.course;