Please help me to write the answer for system development, Thanks

Case study:

The Makeuwell medical clinic registers new patients by getting their name, address, email, phone and medicare no. Before registering the patient, the clinic checks that the patient is not already on the system by checking their medicare number. The patient is listed as either a private patient or a government patient. If the patient is a government patient, the government benefit type e.g. pensioner and the benefit number is noted. If they are a private patient, their health fund name and number are noted. The patient is emailed a welcome pack with information about the clinic and doctors at the end of registration, and they have to enter a password to confirm registration. Their email and password gives them access to the appointment system.

Task:

Using the Makeuwell Medical Clinic description:

A. Make a list of all the features of the Register New Patient epic.

B. Write complete, detailed user stories using the format specified in FIT2001 for any 2 of the features you have identified in the Register New Patient epic.

C. Briefly discuss 3 issues that a developer may experience when trying to write user stories?

D. When understanding the business requirements of a user, is it better to just write the user stories individually, or is user story mapping useful?