Question $1$ a$.$ A student can access a particular package for a maximum of $18$ hours over a predefined period after which the package is unavailable to that particular group of students. Each course has a selection of different packages unique to a particular course. The same course can be offered to students many times for example if they wish to re study. Using any standard ER modelling notation, produce a complete ER model that includes all the Entity Types highlighted in bold in the scenario resolving any many to many relationships. State any assumptions you made. b$.$ Relational databases are very effective in situations for which they are appropriate. In other situations, simpler file$-$based solutions may be sufficient. Suppose you are required to implement