b) places to avoid All Arab neighborhoods & enclaves.
c) Places MUST SEE Kossel & Tzefas
The Old City of Jerusalem IS an Arab enclave, Just act like a tourist and speak english and you will be fine.
Also Kever Rochel and Maarat Hamachpelah are in Arab Conclaves
You should decide if you want to see some of the sights or only visit Kevorim or some combination