Which of the following occurred during the Abbasid Caliphate?
A. They conquered the Byzantine Empire.
B. The Prophet Mohammed died.
C. They heavily taxed non-Muslims.
D. Persian nobles were given authority.

d. the right to establish a one-house legislature

both the house and senate must approve of the conference report. after a bill has been approved by both the house and senate in identical form, it is sent to the president. if the president vetoes a bill, congress may attempt to “override the veto.”