$$Martial Arts R Us$($MARU$)$ needs a database. MARU is a martial arts school with hundreds of students. It is necessary to keep track of all the different classes that are being offered, who is assigned to teach each class, and which students attend each class. Also, it is important to track the progress of each student as they advance. Create a complete Crow$$s Foot ERD for these requirements: Design a relational database based on the ERD you developed for Part $1.$ Make sure that tables in the database are in $3$NF$.$ You can use either of the following notations to represent the design of your database. $(30$ points$)$