Which of the following is the best example of action research?
◦ As requested by the school board, Maurice examines motivation for second language acquisition by fifth-grade students.
◦ Samantha assesses her fifth grade learners' second language acquisition during the school year and issues each a grade.
◦ Nina tests whether there should be a second language program for middle school children in the state.
◦ Dana examines whether the way she is teaching second language vocabulary is successful.