You are building a new social network website, in which users can create accounts, publish short text updates, i$.$e$.,$ posts, write comments to posts, reshare posts, and follow other users.

a$.$ DrawaUMLclassdiagramwithalltheentitiesyouneedtoimplement, showing all the attributes, methods, and relationships. Relationships should include at least one one$-$to$-$many association, one many$-$to$-$many association, one aggregation, one composition, and one generalization$/$specialization$.$

b$.$ Identify three important use cases and describe them using sequence diagrams.

c$.$ Prepare a system design, including software architecture diagram for the system.