Which best describes the relationship between the arab muslims and the byzantine empire?
a. the empire was regularly attacked by arab muslims.
b. the empire was occasionally attacked by arab muslims.
c. the empire regularly attacked arab muslims.
d. the empire occasionally attacked arab muslims.

Need on these last 2 questions on my social studies homework 5 and 6 then i’m done with the homework

The quote below is an excerpt from the charter of the united nations: "the purposes of the united nations are: to maintain international peace and security, and to that end: to take effective collective measures for the prevention and removal of threats to the peace, and for the suppression of acts of aggression or other breaches of the peace, and to bring about by peaceful means, and in conformity with the principles of justice and international law, adjustment or settlement of international disputes or situations which might lead to a breach of the peace . " source:this section implies that the united nations is prepared to do what to keep world peace?

Which of the following world and national events led to a new view of people with disabilities in the us:     a.  world war i and ii veterans with disabilities returned home after the wars. b.  john f. kennedy was elected president and had a sister with a disability. c.  the civil rights and feminist movements. d.  all of the above.