Read the summary.

The Byzantine Empire began as the eastern half of the old Roman Empire and expanded to include much of Rome’s Mediterranean territories (1). South of the Byzantine Empire, the Arab Empire rose to power, conquering the Persian Empire (2). Over time, the Arab Empire expanded and conquered Byzantine territories in the Middle East and northern Africa (3). The Arab Empire required all conquered people to convert to Confucianism (4).

Which best critiques the accuracy of the summary?

While parts (3) and (4) are accurate, parts (1) and (2) need revision.
While parts (1), (2), and (3) are accurate, part (4) needs revision.
While part (4) is accurate, parts (1), (2), and (3) need revisions.
While parts (2) and (4) are accurate, parts (1) and (3) need revision.