Final answer:
The next three caliphs after the death of the Prophet Muhammad were Abu Bakr, Umar, and Uthman. The correct option is a.
Step-by-step explanation:
The next three caliphs after the death of the Prophet Muhammad were Abu Bakr, Umar, and Uthman. Each caliph had their own contributions in terms of conquests:
Abu Bakr: During his caliphate, Abu Bakr successfully suppressed several internal revolts and consolidated the newly formed Islamic state. He also launched military campaigns against apostate tribes in Arabia, securing their allegiance to Islam.
Umar: Umar expanded the Islamic empire significantly through military conquests. Under his rule, Muslim armies conquered regions in Persia, including the Sasanian Empire, and the Byzantine Empire, including Syria, Egypt, and Jerusalem.
Uthman: Uthman continued to expand the Islamic empire through military expeditions. He launched campaigns against territories in Central Asia, including parts of Afghanistan and Uzbekistan. He also commissioned the compilation of the Quran into a standardized written form.
The correct option is a.