The video rental company has several branches throughout the USA. The data held on each branch is the branch address made up of street, city, state, and zip code, and the telephone number. Each branch is given a branch number, which is unique throughout the company.

Each branch is allocated staff, which includes a Manager. The Manager is responsible for the day-to-day running of a given branch. The data held on a member of staff is his or her name, position, and salary. Each member of staff is given a staff number, which is unique throughout the company.

Each branch has a stock of videos. The data held on a video is the catalog number, video number, title, category, daily rental, cost, status, and the names of the main actors and the director. The catalog number uniquely identifies each video.

However, in most cases, there are several copies of each video at the branch, and the individual copies are identified using the video number. A video is given a category such as Action, Adult, Children, Drama, Horror, or Sci-Fi.

The status indicates whether the copy of a video is available for rent. Before hiring a video from the company, a customer must first register as a member of a local branch. The data held on a member is the first and last name, address, and the date that the member registered at a branch.

Each member is given a member number, the full name and number of the member, the video number, title, and daily rental, and the dates the video is rented out and returned. The rental number is unique throughout the company.

Task: Using the following steps, attempt to represent the data requirements of the video rental company as a single ER diagram. State any assumptions necessary to support your design.

solve the question step by step as the following question:

1. Identify the main entities of the video rental company
2. Identify the main relationship types between the entity described in 
3. (a) and represent each relationship as an ER diagram.
4. Determine the multiplicity constraints for each relationship described in
5.  (b). Represent the multiplicity for each relationship in ER diagram created in