(Q) Read the following scenario carefully and answer the questions: (6 marks)

While Adam was browsing on his Facebook app, He noticed an advertisement about a scholarship for ane-month training course in Europe, he clicked on the provided link, and he was directed to the main page of the organisation of the scholarship. He read the details of the scholarship and then wanted to ask a few questions regarding something that he did not understand, so Adam used the provided email link to contact the organiser; a new page in his email app was opened to compose an email. Adam sent the quail and after he clicked done was brought back to Facebook

a- State what are the types of requests were made in these two occasions when Adam was directed to different pages than the original?

b-What luppened to the Facebook app while Adam was browsing on the scholarship provider's site? Which state(s) the app was during the whole process (the Facebook) and which

callbacks the system should call for every state?